Vintage Draftsman’s Ebonite Roller – 30cm Lathe-Turned Rolling Ruler Component (

Vintage - SEIKOSHI Parallel Rolling Ruler With Original Box and Instructions VGC

Vintage Flexicurve Ruler With Case

Vintage Rollertec Amazing Rolling Ruler Geometry Tech Drawing & Navigation 30cm

Slide Ruler Vintage Faber Castell Model 57/87 plus Box,Case & Instructions 12"

Slide Ruler Vintage Faber Castell Model 57/87 w/ Box Case & Instructions 12"

Vintage Fabel Castell 57 / 87 Rietz Slide Ruler

VINTAGE 30CB UNIQUE ADJUSTABLE TRIANGLE RULE RULER MEASURE