WWII US Army Signal Corps Technical Manuals Lot of 3 TM 11-420 453 345 1941-45

Lot of 3 vintage WWII U.S. Army War Department technical manuals published between 1941 and 1945. These publications cover military meteorological equipment calculations, Signal Corps shop training, and communications testing equipment.

MANUALS INCLUDED:

1. TM 11-420 — Tables of Vertical and Horizontal Components of Distances of Pilot Balloons

• War Department Technical Manual
• Dated August 7, 1941
• Prepared under the direction of the Chief Signal Officer
• Contains tables and instructions for determining pilot balloon distances used in meteorological observations.

2. TM 11-453 — Shop Work

• War Department Technical Manual
• Dated March 11, 1942
• Prepared by the Signal Corps School
• Covers shop training, woodworking and metalworking tools, maintenance procedures, and related practical skills used by Signal Corps personnel.

3. TM 11-345 — Cabinet BE-70 Series (Wire Chief’s Testing)

• War Department Technical Manual
• Dated July 1945
• Covers Cabinet BE-70 variants used for Wire Chief’s Testing
• Includes models BE-70-A through BE-70-AB as listed on the cover
• U.S. Government Printing Office publication.

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