I have a number of slot cards, membership cards and room keys on Ebay at the moment. These include the 2 old European entry cards from 1939 and 1954 shown in the scans below.

Thanks for looking

Jason

http://www.ebay.com/sch/chipperuk/m.html?item=151111732918&ssPageName=STRK%3AMESELX%3AIT&rt=nc&_trksid=p2047675.l2562