Following are discussions on the B M in rectangle.

Rod Sell 14th July.

BM in black in rectangle 12x15.  The B is 6mm high.
Can anyone assist with any information.

Harmon Fine 14th July.
I do not believe this is a security marking. Orsetti discussed this several
months ago. I had an oval version of this. We concluded it was probably the
French marking for "Boit Mobile" if I spelled it correctly.
 
 

Return to PSG:HKSM&P Home Page