ANTIQUE EBONY WOOD PARALLEL RULE MEASUREMENT TOOL

Vintage 1963 London Parallel Rule Ebony & Brass Draughtsman Tool

Rare, Inglis Engineers Slide-Rule & Ready Reckoner, Antique, Poor Cond'n (A1080)

Vintage 50s London Parallel Rule Ebony & Brass Draughtsman Tool 38cm

Vintage Rolling / Parallel 18 inch Rule

3 No Vintage Architects / Navigation Ebony & Brass Parallel Rules

Collection of Antique Vintage Ruler Wood Celluloid GPO Stanley Faber-Castel Rule

ebony parallel drawing instrument