A practical system in folding, cutting and modeling, &c. (1908)
Woodford, A. Louise, 1883- [from old catalog] · New York, Broadway publishing company · leaf 28
(I) Butterfly. While the paper is still folded cut out the corners oppositethe closed edge. Cut in about two-thirds of the distance from the center.Fold up on X X x. By raising and lowering this it flies.
Kindergarten
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
