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persons that you may know might be able to shed some light on them for me. I have already sent this information to Paul Neupert (a Zeiss Historica Society member), but he is as mystified as I am. I have enclosed photographs of these for your reference.

  The first binocular is the strangest. I have understood that, due to it's association with Zeiss in the early 1900's, Bausch & Lomb used Zeiss' patented binocular format with objectives spaced further apart than the oculars. This glass is of the early Goerz format and has center focusing. The size is approximately 4" long by 3 7/8" wide. The objective lenses are approximately 21mm in diameter. The case appears to be it's original case and is of the same construction that I have noted in civilian B&L cases from the early 1900's. The binocular is marked as follows (I use a slash to indicate a new line):

Left shoulder: "POWER - 8. / PAT. OCT. 28. 1902"


I.P.D. cap: " 1200?" (last number obscured - possibly "2")

Left ocular (in place of diopter scale): "SOUTHERN OPTICAL CO., INC. Louisville, Ky."

Left front prism cover (viewed from the front): "U.S. NAVY"

Right front prism cover (viewed from the front): "R (partially inside a flattened hexagon) 19100".


  The second binocular is an early 10x50. It has aluminum eyecups with integral yellow filters that are engaged by rotating small toothed wheels. It measures approx. 7 7/8" long (with the sun shades retracted) by 5 1/4" wide. There is no lettering under the sun shades. The small flared section between the two black rings on the objective tubes seems unusual. It looks to me as though this model might be an evolution of a preexisting 40mm or 45mm model. However, I have never seen or heard of a B&L 40mm or 45mm binocular of this style. I have also enclosed a photo of it's case. The binocular fits in the case fairly well but at something of an angle due to it's peculiar shape. I am not sure that this is the original case.

  It is possible that this is the binocular mentioned in James W. Stoker's "U.S. Navy Binocular Information" chart (found in Dr. Hans Seeger's "Military Binoculars and Telescopes..." on page 339) as item #73. Everything fits except the body. He states that this glass uses the same body as the 6x30 EE. The prism housings are virtually identical, but my 10x50 uses a totally different hinge and has no tensioning knob. If Mr. Stoker is referring only to the prism housings, then this may be that glass. The binocular is marked as follows:

Left shoulder: "PRISM MARINE / 50mm APERT. / 10 POWER" inside the typical B&L ring within a ring device.

Right shoulder: "BAUSCH & LOMB OPTICAL CO. / U.S.A. / ROCHESTER, N.Y." inside the typical B&L triangle within a ring within a ring device. There is some surface corrosion around the lettering, but it is reasonably legible with a loupe.

Left front prism cover (viewed from the front): "U.S. NAVY"

Right front prism cover edge (viewed from bottom): "N (inside parallelogram) 2888"


  The third binocular is a 7x50 in the classic Bausch & Lomb style: I would guess that it dates from around 1940. I have consulted the 1944 "Schedule of Binoculars. Navy Dept. Bureau of Ships, Washington D.C." on page 62 or Dr. Seeger's book. A B&L Mk. 13, Mod. 6 is listed, but there is

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