It's so true. Finding the books from 40 through 112 can be a definite challenge with the exception of a couple that seem to always crop up but only in low grade. I've really been focusing on finishing the silver age portion of the collection and I'm finally down to just needing 13 books (86, 90, 91, 93, 95, 96, 98, 102, 103, 106, 107, 108, 111.) Finding the Golden Age books has been easier in a lot of ways than the early SA stuff. Of course the GA books need 62 more to finish that lot. Anyone with any leads please let me know.
Going through this thread I have to compliment you all. There are some beautiful books listed and some amazing collections have been put together!