R.J. SERIES OF POPULAR PUZZLES  "QUEEN MARY" a vintage DEXTERITY PUZZLE that is quite difficult and I believe designed with adults in mind. I have tried on several occasions to complete it but was having too much trouble so I gave up. It is a real challenge to do. Puzzle is complete and in wonderful condition.  It measures 4 inches by 5 inches and is about 1 inch thick. The puzzle made of paper to wood with glass cover over top appears in to have very minimal play wear present (see photos). There is some dust on the outside glass but just needs a cleaning.  I believe this puzzle to be from the 1940's but I have owned it since 1973 and it has been in my possession since. Time to let someone new try to do this puzzle. Good Luck and as always PayPal only please.