20 inch and 12 inch drafting machine scale rules pair Kuhlmann beech and plastic

VINTAGE SET OF 3 DRAFTING MACHINE RULERS ARTIST DRAWING DRAUGHTSMAN TABLE ART

Vintage 1920s COMPASS TECHNICAL DRAWING GEOMETRY DRAUGHTSMAN BOXED SET

Vintage IBM 360 Process Flowcharting Template GX20-8020-1 In Sleeve + IBM Scale

Vintage 1960s Ricoh Slide Rule #105 In Original Case Made In Japan In Box

Antique Victorian Stanley Architects Drawing Instrument Set Draughtsman Boxed

Vintage Original 6" Rectangular Protractor Map Scale Measuring Ruler Old Tool

Rumold 18" Drafting machine scale 60 0623 Style 26 rule