John,

Mason and Co never made even one chip. They were a distributer of gaming supplies. The chips pictured were made at the Burt Co in Portland, Maine. Before Paulson started making their own chips only Burt, T R King, and US Playing Card actually manufactured chips. All others were distributors. Burt bought USPC molds in the early 40's. I estimate Burt made 90% of all clay chips prior to Paulson starting in the 70's. From the few records at Burt I have been privy to, there is no guarentee that Mason even sold the pictured chips. It appears that many distributors sold several of the molds. I have Langworthy selling at least 3 molds attributed to other distributors. Tommy Hains ( arrowdie ) also sold several molds including HHR and HHL. Since they are hot stamped, no records exist. The distributor did the HS after delivery from Burt.

I don't reconize the Your Cafe and can't read the 2nd chip. I suppose you already checked the GT.