Letter Opener, Standard Steel Propeller Company Promotional Item 1920's (pre-Hamilton) C-46 See photo of the location

See photo of the location of the instrument on the Flight Engineers instrument panel from the C-121 flight manual dated 1958

Bendix Autosyn

WIth the part number prefixes of CV

rotating the pointer clockwise from the 6 o'clock position

The glass is loose and appears to need a new gasket

Letter Opener, Standard Steel Propeller Company Promotional Item 1920's (pre-Hamilton) C-46 See photo of the locationHere is a beautifully presented chrome Letter Opener promotional item from the Standard Steel Propeller Company of Pittsburgh, PA. In 1929, Standard Steel Propeller merged with Hamilton Aero Manufacturing, thereafter known as Hamilton Standard. So our assumption is that this item was offered prior to 1929, since the decals on the letter opener state "Standard Steel Propeller" and not "Hamilton Standard" It is in exception condition. The decals are in