Plomb 2-Letter Study Update

Description: 

Study Update 8/22/2016.  I was contacted by a gentleman with pictures of a wrench branded Plomb - Made In U.S.A. and stamped with code 2B in parenthesis.  We are seeking more examples of a second digit "B" code and consider this wrench possible evidence that the 2 letter wartime coding system may have ran for a brief time in conjunction with the prior standard Number-Letter coding system.

There has also recently been posted an oddly coded 1/4" ratchet with a VC code on the Garage Journal located here.