We found this vintage pocket chess set in my father's items - it is leather with celluloid pieces
This looks the closest to the B/W pics of Fischer on the train. There are two columns of slots on the sides for the captured pieces.
Anyone still using these checkbook/passport style boards for analysis?I figured most people would be using their phones or tablets so they can use a strong chess engine to analyze the game in real-time.
Here is a Passport set for sale on a Dutch site:
http://www.vanstockum.nl/passport-travel-chess-set-10018989/