German Faber Castell 'Rietz' 57/87 Vintage Slide Rule
Size:
5760px × 3840px
Photo credit: ©
Helene Rogers / Alamy / Afripics
License:
Licensed
Model Released:
No
Keywords:
castell,
faber,
german,
math,
measurement,
measuring,
numbers,
rietz,
rule,
ruler,
scientific,
slide,
vintage