AMNH Butterfly Notecards

American Museum of Natural History Butterfly Notecards Little Keep it Box 19 cards 20 envelopes Illustrations from British Butterflies and their transformations. H.N. Humphrey, London, 1841 Magnetized boxed butterfly card set with 4 different images of butterflies Cards are 3 1/2 inches x 5 inches Please note one card & one envelope is missing. Overall good condition. The box has a few light marks.