Vintage FABER CASTELL 6" scale rule ruler

Faber Castell Ruler No 57/87 Vintage School Slide Rule for Draughing Drawing

A W Faber-Castell 883/b & 883/c Triangular Engineering Drawing Scale Ruler Cased

Castell 2/84 Mathema AW FABER Slide Rule Vintage Collectors Museum Piece Maths

VINTAGE Drawing Square Draughtsman's Scales Faber-Castell Addiator French Curves

VINTAGE RICON 533 JAPAN & FABER CASTELL/ARMSTRONG 2723 SCALE RULERS & CASES

7x Vintage Tech Rulers 4xBlundell,1Staedtler,1faber-Castell And A Ozalid G5