This format was differentiated by the introduction of the cover artwork by Thelma Gooch. A drastic improvement over the previous artwork, in my opinion--although still confusing as to why only one set of twins was shown.
Any blank spots below are copies that I do not have in my collection--they may exist in this format though. I don't know what the last title to be printed in this format is yet.
Any pictures below that are not 'flat scans' were grabbed from the internet--basically eBay.
Any blank spots below are copies that I do not have in my collection--they may exist in this format though. I don't know what the last title to be printed in this format is yet.
Any pictures below that are not 'flat scans' were grabbed from the internet--basically eBay.