The Forgotten Door

This copy is Ex Library and has a hand written acquisition date of Oct. 1965, the book's copyright was registered on Feb 4, 1965. Ad on rear of jacket for "The Runaway Robot" by Lester del Rey, rear flap mentions "Sprockets-- A Little Robot", "Rivets and Sprockets" and "Cherokee Boy", all titles from 1965 or earlier. The front flap has a $3.50 printed price in lower right corner. An assumed 1st Edition, but this publisher did not mark First Editions or reprints at this time. Later some reprints were marked with a number string. A 13th and a 14th printing seen. Tuck lists the later Scholastic paperback but not the Westminster hardback.