Triangular Ruler Vintage Wood Dietzgen 31626 Architect 12” U.S. STD

Vintage Wood Dietzgen Triangular Scale Ruler 31636 USA

Vintage 12" Engineers Triangular 3 Side Ruler 835 Architect Drafting Tool

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Vtg Dietzgen 1626 Wood 3-Sided Triangular 12 3/4” Drafting Ruler

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LOT OF 2 - Vintage Wood Dietzgen 11526 Architect 12” Triangular Ruler U.S.A