Rapid Rule - 6” Drafting / Architecture - Adjustable Rotating Ruler

Rapid Rule Aluminum Rotating Scale Ruler engineering & Vtg Alvin Triangular

VINTAGE K & E KEUFFEL & ESSER 6" 1630 P PARAGON RULE, DRAFTING SCALE

Ruler Lot Drafting Engineer Rapid Rule Multi-Scale Alvin Staedtler 987 Drawing

Alteneder Mapping Scale Rule

Rapid Rule Aluminum Rotating Scale Ruler engineering

Lot of 2: RAPID RULE & RULE II rulers

Architectural & Engineering Scales 12-inch