I don’t see a connection. Unless they were friends. There was a bowling alley in Burlingame, but I have not ran across any card rooms in the town? Could the B & S chips been used in San Diego..? Of course....stranger things have happened. I would say...unlikely. Only 2 colors. No denominations. Only 500 chips ordered. That would barely be enough to have a game with 4 people. The evidence doesn’t add up.

Well...and the card

Sent to B. Short and Signed by Bryan Short...but possibly to Bruno Spickerman. Just weird. 🤓

These 3 images from 1972 San Diego Directory
There could be a few different combinations from initials of owners?

ENB...SWS..EB...SS....E&S....B&S..or just BS ?..they could of used chips from a closed down San Diego Card Room?

It’s kind of like saying....where are the chips from Ray Plunkett’s Tahoe Mariner? Licensed from 79-86 with slots ...craps...21...Roulette? Nobody save a chip from there...or remembers what they look like?