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fkwJust so you can tell next time.  The way to tell on that type of reprint is on the back. It is missing the last 2 lines of print at bottom... 
"C.1952 Bowman Gum Division Haelan Labora-
tories, Inc. Phila 44, Pa.-Ptd. in U.S.A."
These 2 lines were replaced by "reprint" which was then erased off.