Vintage Dietzgen #1667-BG Map Measure Drafting 12" Triangle Scale Japan

Vtg U.S. ST'D Wood Drafting Ruler Triangle 3-Sided Vintage Measuring 12" L #1727

Vintage U.S. ST'D Wood Drafting Triangle 3-Sided Ruler Measuring 12" Long

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

Vintage Triangular Engineering Drafting Scale Ruler West Germany Plastic

Wooden 3 Sided Triangle Drafting Ruler Engineer Vintage 12"

VINTAGE DIETZGEN SIGNED WOODEN TRIANGLE RULER DRAFTING ENGINEERING US STANDARD

Engineers Ruler Set-Vintage 12" Triangle Wood & Plastic 6"-US ST'D-Alvin Italy