ARMY ORDNANCE BINOCULARS AND FIELD GLASSES. Ordnance Fire Control Sub-office, Frankford Arsenal, Phila, PA. (No date, between July-Dec.1944)
   (M13A1, M17A1 from other sources.)   Transcribed by Peter Abrahams, November 2000.  Below, RET = reticle, BscDes = Basic Design

BINCLR|MagXAper|F.O.V.|COST|# MADE|RET |BscDes|Weight| Manufacturer   | Status                 |  Miscellaneous
M1    |8 x 56mm|6degr.|    | 1 ?  |    |      |      |Keuffel & Esser |                        | For T9E1 height finder (never procured)
M2(T2)|8 x 56  |6d.15'|$70.| 2,476|none|      |      |Bausch & Lomb   |Std. 8x56 for Engnr Corp|Searchlight control station, M7 used instead
M3    |6 x 30  |8d.30'|$71.|311263| L  |BscDes|22 oz.|Nash Kelvinator |Substitute std for M13  | Also by Westinghouse, 25 oz.  See M13
M4      cancelled
M5    |6 x 30  |7d.10'|$77.|      | R  |      |18 oz.|Wollensak       |British                 | Not similar to M3
M6    |6 x 30  |8d.16'|$60.|47,656| R  | M3   |22 1/4|Universal Camera|British                 | 
M7    |7 x 50  |7d.16'|$85.|13,189|none|BscDes|41 oz.|Bausch & Lomb   |Subs. std. for M2 & M16 | Navy Mk13 Mod6,standardized for Army use
M8    |6 x 30  |8d.30'|$64.|18,617| L  | M3   |22 oz.|Bausch & Lomb   |Substitute std. for M13 | Parts 90% same as M3. Photographic reticle.
M9    |6 x 30  |8d.16'|$60.|30,244| L  | M3   |22 1/4|Universal Camera|Substitute std. for M13 | 
M10   |7 x 50  |7d    |    | 1    |    |      |      |Optical & Film Supply| Cancelled.        | Proposed model identical to OFS Navy 7 x 50
11      number 11 not used in Ordnance series, easily read as II
M12   |6 x 30  |8d.15'|    |      |    | M3   |21 3/4|War Supplies Ltd|British                 | Mfg. Ottawa, Canada. Not for US Army use 
M13   |6 x 30  |8d.30'|$72.|43,378| L  | M3   |25 oz.|NashKelv,UnivCam|Standard 6 x 30    |Waterproofed M3. Replaced M3,M8,M9. All services.
M13A1 |6 x 30  |8d.30'|    |      |    |      |      |Universal Camera|                        |Waterproofed M13, otherwise identical
M14   |7 x 50  |7d.16'|    | 0    |none| M7   |41 oz.|none made       |Air Corps.Std.   Inf.,Cav.,Arm., & Eng.Cps subs. std.|Waterproofed M7
M15   |7 x 50  |7d.16'|$110|19,093|none| M7   |52.5oz|Westinghouse    |  "    "    "    "    " | M14, with filters & rubber eyepiece
M15A1 |7 x 50  |7d.16'|$90.|12,000|none| M7   |      |Westinghouse    |12,000 Ordered July44   |M15,filter removed. New eyecup for filter M1
M16   |7 x 50  |7d.16'|$90.|62,756| L  | M7   |41 oz.|Nash Kelvinator |Std. 7x50 for all but air corps   |M7 with mil scale reticle
M17   |7 x 50  |7d.16'|$90.|53,412| L  | M7   |53 oz.|Westinghouse    | "                      | M15 with mil scale reticle
M17A1 |7 x 50  |7d.16'|    |      |    |      |      |Westinghouse.   |                        |M17,filter removed. New eyecup for filter M1
Mk 21 |7 x 50  |7d.16'|    |      |    | M7   |43.5oz|Kollsman Instr. | Substitute standard    | For Army Air Force to supplement M14 & M15
T4    |6 x 30  |8d.30'|    | 6    | L  | M3   |      |Westinghouse    | Completed.             | M3 with pressed steel body.
T6    |6 x 20  |      |    |      |    |      |      |Universal Camera| Experimental     | Spectacle type, for field artillery air observers
T7    |3.5x20  |      |    |      |    |      |      |Universal Camera| Experimental     | Spectacle type, for field artillery air observers
T8    |7 x 50  |      |    |      |    |      |      |                | Experimental           | M15 with improved waterproofing
Type E|6 x 30  |8 degr|    |      | L  |      |24 oz.|Bausch & Lomb   | Limited standard       | 
TypeEE|6 x 30  |8d    |$39.|      | L  |      |25 oz |Bausch & Lomb   | Limited standard       | Large number still in use
TypeEE|6 x 30  |8d    |    |      | L  |      |32 oz |USN Gun Factory |                        | Larger & heavier than B & L model
HuetTp|8 x1.06"|5d.48'|    |      | R  |      |24 oz |Huet & Long     | Limited standard       | Adjusting ring for reticle
HuetTp|12x1.22"|3d.42'|    |      | R  |      |28 oz.|Huet & Long     | Limited standard       | Adjusting ring for reticle

=================================================================================

M18, 3.5 x 58.5, 12 degree 30' field, infra-red.
M19, 7 x 50, Bell & Howell, modular construction.   
M20, 7 x 50.
M22, 7 x 50, Steiner, laser protection.

M3, M8, M9, M13, M13A1: Objective focal ratio f4.4.  Objective focal length 5.191 inches.  Eyepiece focal length 0.865 inches.
M7, M15, M15A1, M16, M17, M17A1: Objective focal ratio f3.9.  Objective focal length 7.583 inches.  Eyepiece focal length 1.083 inches.
BC scope M65: 10x, 6 degree field. Objective focal length 10.756 inches.  Eyepiece focal length 1.076 inches.


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