Fish, J[ohn] C[harles[ L[ounsbury] [from old catalog] · Palo Alto, Cal., The author · leaf 84
■portion of curve retraced •v/th soft pencil or ruling-pen using Irregular Curve as a guide •<..^ ss … Fig. 17-25 Sheet 7b detach l%ncil-/eg: loosen clamp-ing .screw of spilt socltet cf compassieg, andpui/onpencii ieg.To use Lenojihenincj-bar: insertilsshank in compass leg socket;insert shanl< of penci/ or penleg in isoc/tet of bar; tighten <^\ t>otfi c/cimping screnys. Clamping screw…
Mechanical drawing · Lettering
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