Tachometer, Air Ministry, Mk IA, 6C/223 (Serial 134/42) C-43 The pointers are marked L
$66.95
Description
The pointers are marked L and R
but the compensating module has been removed on this compass
color-tabbed sections:
as indicated in the small window at the 3:00 position
Tachometer, Air Ministry, Mk IA, 6C/223 (Serial 134/42) C-43 The pointers are marked LHere is a WWII era Mk IA chronometric (mechanical) tachometer of the British Royal Air Force, Air Ministry stores reference number 6C 223, serial number 134 42. This tachometer measures from 500 to 5000 RPM, and has a totalizing counter which measures up to the millions of RPM. The "6C" prefix in the stores reference number indicates that this tachometer was intended as a test instrument, and the "42" in the serial number indicates a manufacturing
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