Set of Architect & Engineer Triangular Scales – ALVIN Drafting, LLC
WOODEN TRIANGULAR ENGINEER Drafting Scale Ruler -- Boxwood (2) $8.99 - PicClick
Vintage TRIANGULAR Engineer Scale wooden Ruler K & E 8893 Scale 10-60 - Helia Beer Co
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Vintage Lietz Triangular 3-sided Architect Ruler 2302-S West Germany, Pearwood 1960s Drafting Tool, Mathematics Tool, Vintage Science Tool
WOODEN TRIANGULAR ENGINEER Drafting Scale Ruler -- Boxwood (2) $8.99 - PicClick
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Vintage Scale Rulers
Vintage U.S.ST'D Wood Triangle Scale Architect Ruler Germany & Other Lot Of 3
Vintage Scale Rulers