SS-C-635B, FEDERAL SPECIFICATION: CRAYON ASSORTMENT, DRAWING, COLORED (07-DEC-1966)

SS-C-635B, FEDERAL SPECIFICATION: CRAYON ASSORTMENT, DRAWING, COLORED (07-DEC-1966)., This specification covers the requirements for cylindrical, hexagonal, or cylindrical with one flat side colored crayons for drawing on paper, cardboard, wood, or fabric.