Extensive lot of 17. c. 1950s. Includes matching envelopes. Unused. Same variety offered in Auction #181 - #1988 with two additions. First is additional mechanical card reading "Just Dropped By With A Friendly Hi!" Second addition is 5x6" that opens to 19x23" having "Pin The Tail On Topper" game. All are interesting and clever birthday/greeting cards with Hoppy's image. Sizes range from 4.5x5.5" to 6x7". Two with cast metal charms attached to design. Many mechanical designs, one with spinner and gameboard. Many die-cut/fold-out. Two with spinning dials to change inset photos of Hoppy. Scattered light age dust. All unused and Exc.