Make a physical mold used for mass-production from plaster and wax.
Draws patterns and prescribes manufacturing specifications for envelopes, compiling required data from customer orders, machine capacities, and knowledge of envelope manufacturing: Computes size, number, and type of paper sheets needed to fill order, using trigonometry, and knowledge of paper sizes and paper cutting machines. Sketches layout and dimensions of envelope on cardboard, using ruler, square, and other drawing instruments. Selects machines, dies, tools, and compiles machine setup data for such operations as paper and die cutting, machine and hand folding, printing, paneling, and attaching fastening devices, utilizing knowledge of machines, tools, and equipment. Determines sequence of manufacturing operations, utilizing knowledge of types and capacities of available machines, and lists such data on layout card.