Warner & Swasey Binoculars.  Assembled by Peter Abrahams.
=======
Popular Astronomy, vol. 11, 1903, page 279:
The Prism Binocular Adopted as the Standard by the U.S. Navy.
In the spring of 1902, the United States Navy Department made an official 
test of Prism Binoculars for the purpose of choosing the most efficient and 
practical instrument for Government use.  The Warner & Swasey Prism 
Binocular was pronounced superior to all others and recommended for adoption 
as the standard for the Navy.  Large orders were then given the Warner & 
Swasey Company of Cleveland, Ohio, for these glasses, all of which have 
proven entirely satisfactory to the officers and the Navy Department.  The 
decision, however, was not so satisfactory to the makers of other prism 
glasses, and they urgently requested another test.  To satisfy all, the 
Department acceded to this request, and notified American makers and the 
representatives of foreign makers that an official Board would again be 
appointed for this purpose and named February 2d, 1903 as the date.
We understand that Prism Binoculars were submitted by the following makers:
The Warner & Swasey Co, Cleveland, Ohio.    The Bausch & Lomb Optical Co., 
Rochester, N.Y.    C.P. Goerz, Germany.    Ross Optical Co., England.    
Voigtlaender & Co., Germany.
The finding of this Board, submitted in March, confirmed the previous 
reports and tests by recommending the Warner & Swasey Prism Binocular as the 
standard for the Navy.  Extensive orders from the Department have since been 
given the Warner & Swasey Company for these prism glasses.
Previous to the adoption of the Warner & Swasey Prism Binocular last year, 
no glasses of the prism type were in use in the Navy.  All of our 
battleships, gun boats, and cruisers are now supplied with the Warner & 
Swasey Prism Binoculars and the official reports show that they are giving 
the fullest satisfaction.
================

From a W & S brochure: In 1900 we brought out the Warner & Swasey Universal 
Prism Binocular.....of aluminum....the instrument can be taken apart and 
reassembled without change in collimation or adjustment.  The optical parts 
of these instruments are from the celebrated works of the John A. Brashear 
Co.  13/16 inch objectives.
6 power, 6 3/4 degree field.  8 power, 5 degree field.  10 power, 4 degree 
field.  Price $40.
=====================

There was a Warner & Swasey binocular on ebay 08 June 2000, with letter of 
Aug. 9, 1963 from L.M.Cole, V.P. in charge of sales for W & S, to C.B. 
Smith, Construction Eqt. Branch Mgr., W & S, Quincy, Massacusetts, 
concerning an inquiry on W & S binoculars.  
"There is not much around here in the way of history because most of the old 
records have been destroyed.  I do remember that there were three patents on 
binoculars issued in 1902.  Two of them were to Mr. Gottlieb Fecker, and one 
of them was issued to Worcester R. Warner and Gottlieb Fecker.  We made 
binoculars in 6, 8, and 10 power, and before and during World War I, we made 
a total of about 6,000.  All manufacture was stopped after World War I.  
Since that time, there have been some of these returned for cleaning and 
adjustment, but everyone who had any skill doing this has now either passed 
on or is retired.  I do know for a fact that there are no lens of any kind 
left around here, but perhaps by digging for a long time, we might discover 
a few parts, but I doubt it."
==================

U.S. Patents.
695,712.  March 18, 1902.  Gottlieb Fecker.  Porro prims telescope, leaf 
spring prism clamp.
701,863.  June 10, 1902.  Gottlieb Fecker.  Binocular, prism housing covers 
extend to form hinge & strap loop.
714,340.  Nov. 25, 1902.  Worcester Warner and Gottlieb Fecker.  Prism 
binocular, groove in prism, finger engages groove, finger attached to plate 
with slot to adjust.
=========================================