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Paper folding and cutting; a series of foldings and cuttings especially adapted to kindergartens and public schools (1892)
Ball, Katherine M · Boston, The Prang educational company · leaf 49
42 PAPER FOLDING AND CUTTING. … THE NONAFOIL. Fold to Fig. 6, and cut fromI to 2. The arc 1-2 is a quad-rant with 3 as centre.Paper work
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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