Rare Antique
Spencer of London
Presentation Octant
Ca 1840

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SPENCER of LONDON
 

OCTANT – SEXTANT Ca 1850
 

D. Eggert & Son, New York label
 

By Rare British
Maker
Presented is an ebony frame, ivory arc, antique octant made under the little known
mark of Spencer of London. This mark is rarely seen which makes this spectacular instrument all the more desirable. As listed
in Webster’ Registry or Instrument Makers, the research team of Coffeen and Moskowitz believe this name was used by Spencer,
Browning and Rust on certain of their more important instruments since both companies shared a common address.

This well made instrument has
a ribbed brass index arm measuring over 12 3/4″ long with a radius of arc of 10 1/8″. The horizon mirror is on an
adjustable turntable. There are three rectangular sun shades and a single circular horizon shade. This sets this instrument
apart from others which were only fitted with index sun shades. Note the early form ivory vernier scale, reading from
right to left from 0 to 20 arc seconds, two hole peep sight with “flap”, and the configuration of the shades all of which
help date the instrument. Its larger size and lack of a handle on this instrument mark it as a transitional piece between
an octant and a sextant.

The sextant’s arc measures from – 3 to
plus 105 degrees, and the ivory plate on a cross bar between the two limbs is engraved “Spencer of London”.  The
polished brass machinery, sharply engraved ivory and single distinctive horizon shade all add to its appearance. The
keystone case, except for a small missing section of the right corner is also in great condition. Overall it
is worthy of being given as a gift or as a center point in a fine collection.
 

 

Spencer Browning Rust worked in London from 1724 to 1840 when the name was
changed to Spencer Browning & Co. after the death of Ebenezer Rust.  The successor, Spencer Browning had offices
at a number of addresses on Wapping High Street, London and
were in business until 1870.
They had an early dividing machine and inscribed arcs for others.
Ref: Gloria Clifton,
Directory of British Scientific Instrument Makers 1550-1851 (London, 1995), p. 261.
 

PROVENANCE:  Handed down in the family
of a Boston jeweler through three generations. It was said to have been received by the grandfather in lieu of a cash payment,
likely around 1929. Both the father and the grandson who have no interest in the sea thought it best if it went to someone
who would appreciate it.

INSTRUMENT CONDITION:
The index mirror  and the horizon mirror are faded, but in otherwise very good condition. All
the ivory is in perfect condition,
and the engraving is sharp and distinct. A
small ivory pencil which usually has been lost, is present. The index arm clamp, and shade glasses are complete and in good
working order. The ebony frame is like new. The instrument has its original machinery, and a two hole peep sight. Everything
is original and in good working order. It has been recently polished and lacquered to enhance its appearance.

 

THE CASE & LABEL: The “keystone” Mahogany case that is in very good condition.
It is very clean inside with a small hole in the lower right corner and a small section missing in the upper right corner.
There is a lock, but no key. The label is that of D. Eggert & Son at  239 Pearl St., Head of Burling Slip, New York is in like new condition. They were active
in New York as a chronometer and nautical instrument makers until about 1850. They are listed in Webster’s database
of instrument makers.
      Closed keystone case. Note top corner
                      D.
Eggert & Son label

Peep sight and horizon mirror

Machinery and index mirror

 

All in all, a highly desirable
and worthwhile example from one of the higher quality English instrument makers
 
DIMENSIONS:
Length of index arm  12 3/4″
Width of frame at arc 10 1/4″
Radius of arc 10 1/8“
Index
mirror 45 x 32 mm
Horizon mirror 28 x 21 mm
Weight sextant 2 Lbs 2 oz Total weight
Rarely do you find an instrument that is that is 166 years old in this original condition with a perfect
case. A superior
addition
to any collection

 

 

 

OUR QUALIFICATIONS:
We are one of the few still selling navigation instruments that know anything about them. For purposes of judging whether
Joel’s opinion counts, he was the editor of the chapter on sextants of the 1977 Edition of “Bowditch”, The American Practical
Navigator, NAVPUB 9; a member of the U.S. Naval Academy Navigation Symposium,  1975 -1978; the author of a book on marine
sextants, Cornell Maritime Press,1975, and the founding president of Nautech Maritime Corporation which partnered with Tamaya
of Japan in the introduction of their sextants and the famous NC-2 navigation computer, in the U.S. market. Joel is also a
retired Master Upon Oceans, and held a U.S. Navy “D” Qualification as a Senior Skipper – Oceans.
From 1995 through 2000, he served as a Varsity Offshore Sailing Team
coach at the U.S. Naval Academy.
OUR UNCONDITIONAL NO NONSENSE GUARANTEE: If not completely
satisfied with your purchase it may be returned within five days of receipt in its original packaging if without damage. Return
items must be insured for their full value. Only a prior email authorization from us for the return is required. Shipping
charges are included in this offer if an error is due to our fault within the Continental United States.

International
buyers welcome
, but inquire first. We
have satisfied customers in Argentina, Australia, Austria, Belgium, Bermuda, British Virgin Islands, Canada, Chile, China,
Czech Republic, Democratic Republic of Congo, Denmark, Estonia, England, France, Germany, Greece, Holland, Hong Kong, Hungary,
Iceland, Indonesia, Ireland, Israel, Italy, Japan, Kuwait, Latvia, Luxembourg, Malaysia, Martinique, Mexico, New Zealand,
Nigeria, Norway, Nova Scotia, Panama, Philippines, Poland, Portugal, Puerto Rico, Romania, Russia, Saudi Arabia, Scotland,
Singapore, South Africa, Spain, St. Maarten, Sweden, Switzerland, Thailand, Turkey, United Arab Emirates, USVI and the Eastern
Caribbean.

 

 

ACCEPTED FORMS OF PAYMENT are Bank wire transfer, cashier’s check, money order, or personal check
in which case the item will be held until cleared. No credit cards or PayPal accepted on this item.

Copyright 2012 by Land And Sea
Collection™, All Rights Reserved
 

 

 





 

DEAL PENDING!

 

SPENCER of LONDON  

OCTANT – SEXTANT Ca 1840

D. Eggert & Son, New York label
 

By Rare British Maker
Presented is an ebony frame, ivory arc, antique sextant
made under the little known mark of Spencer of London. This mark is rarely seen which makes this spectacular instrument
all the more desirable. As listed in Webster’ Registry or Instrument Makers, the research team of Coffeen and Moskowitz believe
this name was used by Spencer, Browning and Rust on certain of their more important instruments since both companies shared
a common address.

This well made instrument has a ribbed brass index arm measuring over
12 3/4″ long with a radius of arc of 10 1/8″. The horizon mirror is on an adjustable turntable. There are three
rectangular sun shades and a single circular horizon shade. This sets this instrument apart from others which were only fitted
with index sun shades. Note the early form ivory vernier scale, reading from right to left from 0 to 20 arc seconds,
two hole peep sight with “flap”, and the configuration of the shades all of which help date the instrument. Its larger size
and lack of a handle on this instrument mark it as a transitional piece between an octant and a sextant.

The
sextant’s arc measures from – 3 to plus 105 degrees, and the ivory plate on a cross bar between the two limbs is engraved
“Spencer of London”.  The polished brass machinery, sharply engraved ivory and single distinctive horizon
shade all add to its appearance. The keystone case, except for a small missing section of the right corner is also
in great condition. Overall it is worthy of being given as a gift or as a center point in a fine collection.
 

 

Spencer Browning Rust worked in London from 1724 to 1840
when the name was changed to Spencer Browning & Co. after the death of Ebenezer Rust.  The successor, Spencer
Browning had offices at a number of addresses on Wapping High Street, London and
were in business until 1870.
They had an early dividing machine and inscribed arcs for others.
Ref: Gloria Clifton, Directory of British Scientific Instrument Makers 1550-1851
(London, 1995), p. 261.
 

PROVENANCE:  Handed down in the family of a Boston jeweler through three generations.
It was said to have been received by the grandfather in lieu of a cash payment, likely around 1929. Both the father and the
grandson who have no interest in the sea thought it best if it went to someone who would appreciate it.

INSTRUMENT
CONDITION:
The index mirror  and the horizon mirror are faded, but in otherwise very good condition.
All the ivory is in perfect condition, and the engraving is sharp and distinct. A small
ivory pencil which usually has been lost, is present. The index arm clamp, and shade glasses are complete and in good working
order. The ebony frame is like new. The instrument has its original machinery, and a two hole peep sight. Everything
is original and in good working order. It has been recently polished and lacquered to enhance its appearance.

 

THE CASE & LABEL: The “keystone” Mahogany case
that is in very good condition. It is very clean inside with a small hole in the lower right corner and a small
section missing in the upper right corner. There is a lock, but no key. The label is that of D. Eggert &
Son
at  239 Pearl St., Head of Burling Slip, New York is in like new condition. They were active
in New York as a chronometer and nautical instrument makers until about 1850. They are listed in Webster’s database
of instrument makers.
      Closed keystone case. Note top corner
                      D.
Eggert & Son label
              Peep sight and horizon
mirror

Machinery and index mirror

 

All in all,
a highly desirable and worthwhile example from one of the higher quality English instrument makers
 
DIMENSIONS:
Length of index arm  12 3/4″
Width of frame at arc 10 1/4″
Radius of arc 10 1/8“
Index mirror 45 x 32 mm
Horizon mirror 28 x 21 mm
Weight sextant 2 Lbs 2 oz Total weight
Rarely do you find an instrument that
is that is 166 years old in this original condition with a perfect case. A superior
addition to any collection

 

 

 

OUR
QUALIFICATIONS: We are one of the few still selling navigation instruments
that know anything about them. For purposes of judging whether Joel’s opinion counts, he was the editor of the chapter on
sextants of the 1977 Edition of “Bowditch”, The American Practical Navigator, NAVPUB 9; a member of the U.S. Naval Academy
Navigation Symposium,  1975 -1978; the author of a book on marine sextants, Cornell Maritime Press,1975, and the founding
president of Nautech Maritime Corporation which partnered with Tamaya of Japan in the introduction of their sextants and the
famous NC-2 navigation computer, in the U.S. market. Joel is also a retired Master Upon Oceans, and held a U.S. Navy “D” Qualification
as a Senior Skipper – Oceans.
From 1995
through 2000, he served as a Varsity Offshore Sailing Team coach at the U.S. Naval Academy.
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Shipping & Packaging

The cost of shipping, packing, handling, and insurance to your destination, will be calculated point to point and is an additional charge. You may email us to get these costs. We price our shipping honestly, but we expect to be reimbursed for the nominal cost of packaging materials and handling.

Our Unconditional 'No Nonsense' Guarantee

If not completely satisfied with your purchase it may be returned, if without damage, within three days of receipt in its original packaging. Return items must be insured for their full value. Only a prior email authorization by us for the return is required. Shipping charges are refundable if due to our error within the continental United States.

International buyers welcome, but inquire first. We have satisfied customers worldwide.

Standard Forms of Payment

Bank wire transfer, cashier’s check, money order, or personal check in which case the item will be held until cleared. Our prices are quoted net to us so that the use of credit cards or PayPal incur extra charges. Terms on overseas sales are different.

Established in 2003

Celebrating 18 Years of Exellence in Nautical Antiques