Three different microscopes 1787. These images are from patent medicine ads & medical books & magazine. They are in the public domain & offer a glimpse of what people will try in the great pursuit of good health & well being. The cards are printed on warm white 80 lb. cover stock & come with a matching envelope. They come in three sizes - 3.5 x 5 when folded, 4.25 x 5.5 when folded, & 5 x 7 when folded. They are available in 10 packs & you can ad your own message, use one of ours, or leave them blank. Great invitations to a Birthday bash, or an announcement of a strange event. Now available in Postcards printed on 4 x 6 100 lb. warm white cover stock. Three Microscopes Vintage Science Image Hand Made Note Card Graduation Birthday Thank You Get Well