i have a book Tawny Scrawny Lion. I have looked all over the net. there is one on ebay claiming to be a first edition. The one i have has the 39 cent stamp in the corner, no edition or letter found in the spine. no print line.it has the #138 on it, copyright 1952 on the inside. It looks like a '52 copy to me, but the last book listed inside cover is 599 and D123. HELP. Is there a way to tell its edition or real age???