The four plaques shown are from my collection (all are printed on one side only). I have always believed these to be "fakes", meaning that they were never intended for casino gambling. Now look at lots #103 and #104 from the CC & GTCC 2007 auction catalog. Those plaques are described as "Est. Value: $100 From: early 1900’s This is a very old and LARGE plaque from Monte Carlo."
Link to CC & GTCC 2007 auction catalog:
http://ccgtcc.com/2007_auction_catalog.pdf
WHAT DO YOU THINK? Real or fake? Are the plaques shown in this posting copies of plaques that were really used for casino gambling in Monte Carlo?