Hi Bjorn,
These chips were used in the 1950's at the NCO Club at the Spangdalem US Airforce Base in Bitburg, Germany. The chips are $15.00 each or the set of 3 for $35.00, plus shipping charges. These chips are in much better shape than they look, but they scanned poorly due to the very light strike on the hotstamps. The green chips has 50c on the reverse.
Take care,
Jerry