Vintage Dietzgen 1667BP Engineer Triangular 12" Scale #2

12" architect scale ruler DIETZGEN 1667 BP, 21626, yellow color

Dietzgen “31626” Engine Divided Wooden Triangular 12” Scale

Vintage Triangular Scale Ruler Dietzgen Three-Sided Made in U.S.A.

Dietzgen 1626 Wooden VTG 3 Sided Triangular 12" Ruler Scale Drafting Vintage USA

Vintage Dietzgen 1656 BP Triangular Scale Ruler Architecture Drafting

Vintage Dietzgen No. 31626 Wooden 3-Sided Triangular Scale Ruler--for drafting

✨Vintage 12 " Dietzgen (Germany) № 1667BP Engineer Triangular Scale (INV Q889)