Hertz has it in his book as BB.
Rich Hanover and I agree.

From Rich:
It definitely could be BB (second B is an exact mirror of the first B).

I would vote for BB

Charlie email me your address. poker4@cox.net

You can have the white Hub HYC = Hollywood Yacht Club, Hollywood FL or a 50¢ yellow Lower deck from Chicago, both have been IOTD's.