Manual of cardboard construction for third and fourth grades (1902)
Kunou, Charles A. [from old catalog] · [Los Angeles?] · leaf 17
Construction: With ruler and triangle draw square 4 sides. Draw diagonals. Teach meaning of diagonals. Measure i/o from center on each diagonal. Cut out square with scissors. Cut on each diagonal to the y^ mark, as in drawing. Roll right hand corner over and upward, as in sketch. Insert a pin… … 16
Paper work
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
