Vintage Acumath Engraved Slide Rule Acu-Math Rule Co. W/Original Box Manual

Acu-Math Slide Rule w/ Sleeve / Original Box

Vtg Acu-Rule Slide Rule w/Original Box ~ A B C D K Scale (Damaged Box)

Original Vintage Acu-Math 5 Inch Engraved Pocket Slide Rule in box

Original Vintage Acu-Math 12 Inch Engraved Pocket Slide Rule in box

Vintage A.W. Faber Castell Slide Rule Germany Made Original Box

Vintage Slide Rule Mannheim Acu-Math No. 400 w Original Sheath Acumath Calc Trig

Acu-Math Slide Rule Model 500 Engraved Simplex Trig - Acu Math - 1960 Vintage