$24.29

Early Vintage PIC Trade mark A G Thornton Ltd Sliding Rule In Case

$33.82

VINTAGE ARISTO - SIMPLEX NUMBER 0 911 MADE IN GERMANY SLIDE RULE WITH CASE

$13.53

VINTAGE MATHMATICLE SET IN CASE COMPLETE 1950'S

$24.36

Vintage Technical Drawing Draughtsman tools see all photos ,

$7.49

Vintage 1900s Horn Bros. York Pa Industrial Architectual Industrial Drawing

$29.38

Rule To Numeracy IN Boxwood Tavernier Gravet 8 9 41 IN Sound Case

$119

Antique Polar Planimeter in Original Case and Packaging, Perfect Collectible

$99

VINTAGE 1940 WW2 ASTON & MANDER & CO MAKERS LONDON , 18 INCH

$13.26

Vtg Rotring Drawing rulers (2pcs) Art 5843 & The Other With Original Package

$40.58

Vintage Precision BODEN Compass Drafting Drawing Case Set MADE IN GERMANY

$21.64

Vintage A.W. Faber Castell Slide Rule Model 57/89 RIETZ Made In Germany

$135.32

Vintage Troughton & Simms 1916 Reflecting Clinometer instrument