Vintage Wood Dietzgen 11526 Architect 12” Triangular Ruler U.S.A

Vintage Alvin No 280x Boxwood Architect Scale Divided West Germany w/Sleeve

Vintage Arthur Brown 7957P Triangular Drafting Scale Ruler Engineering Scale 12”

Vintage Keuffel & Esser Paragon 1631P Triangular Scale Drafting Ruler

Vintage Dietzgen Architects' 12" Triangular Scale Ruler 1683B Excello

Vintage IBM Flowcharting Template #GX20-8020-1 w/ Original Sleeve

Vintage Nestler 6” Drafting, Architect, Engineering Ruler Scale; Germany; 0912

Vintage 12" PICKETT P-232 E-ES Triangular Drafting Architects Scale Ruler