How to work it; a manual for the use of the Ben Day rapid shading mediums and its registry attachments (1913)
Day, Ben, Inc, Day, Benjamin, 1838-1916 · New York, Reprint by Ben Day, inc. · leaf 11
tones of any area, large or small. With its swing rods lowered to the level of its felt-edged base, jig^dy Dis-it will be found especially useful in very laige work such as draw- placement toings on card-board, paper, or architects plans; or on large sheets Differentof aluminum or zinc for… … •^ H b t-1 H Ej m < P^ (^ Q hJ UJ O w M S H UJ W :<i; H H fe O Ph ?5 <5l QZ J fL, m H Q PJ ^p <;^ O u. « o O rn THE BEN DAY RAPID SHADING MEDIUMS Description of Parts of Apparatus. The drawings that accompany the text show the details of themechanical adjustment of the machine and…
Drawing instruments
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