This photo was sent to the author of CASINOS in the late-1980's by CARO.

Several years later two of the three rectangular plaques appeared on eBay and Eisenstadt and I bought one each and I received the one on the left with the distinct dark imperfection which is not uncommon with MOP.

Other than when I had the plaque on exhibit in 1998, it has been in a vault until recently and this is a photo I took recenly; the dark imperfections is now gone and much brighter, overall.