Acu-Math No 150 slide* rule with Case F*S Baby Overall this one is in no google Soft leather uppers AEF-3B Super-Splay
Platform notes & fabric story
Description
Acu Math No 150 slide* rule with Case F*S Baby Overall this one is in no google Soft leather uppers AEF 3B Super Splay Overall this one is in extraordinary shape 1931 that is 90 years ago and this gadget is still practical and functional