Six tissue paper butterflies with red, black, and yellow colors. Attach a small rubber band to the back and wind the top "propeller," then lay flat in a card or letter. The butterfly will spring to life when the correspondence is opened. Possibly made by S.S. Adams, these particular butterflies simply indicate "Pat. Pending" rather than a maker. Some tears and creases, however considering the material and age these butterflies are in good condition.