I need help determining the value of Rudolph The Red-nosed Reindeer. I have two identical copies of the book. Each book is marked .49 cents and number 331 on the front cover. Each book is marked Twenty-Second Printing, 1976. However, on the back cover there are differences. The last train car between Bugg’s Bunny and the red caboose holds different characters. One has Bert & Ernie and the other has the little grey and black tabby kitten. Why the difference and what is the value? Thanks!

The back covers, being the same on different titles are printed up by the thousands in advance of a books printing. In the case of the same title/number, having a different back cover, they used up the back covers they had before using a new back cover design. The Bert and Ernie back cover was produced after the other.