Manual of cardboard construction for third and fourth grades (1902)
Kunou, Charles A. [from old catalog] · [Los Angeles?] · leaf 55
53 B4 COURSE.No. 6. Pictureframe.Construction: For front piece draw rectangle ^xS, on bristolboard. Draw inside rectangle 1 from sides. Draw diagonals. Cut around figure and on diagonals. Roll points forward and upward as in sketch. For back piece, make rectangle on tagboard same as front… … 54
Paper work
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.