Letter Opener, Standard Steel Propeller Company Promotional Item 1920's (pre-Hamilton) C-46 which is aligned to peer

which is aligned to peer through the circular window between his feet

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

WIth the part number prefixes of CV

The pilot can select the mode of operation desired by use of the Reset/Stby switch located on the lower right corner of the instrument case

Letter Opener, Standard Steel Propeller Company Promotional Item 1920's (pre-Hamilton) C-46 which is aligned to peerHere 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