Vtg A.W. Faber calculating rule Antique tool Science Engineer Medicine 30's Germany have two different ones listed for sale.
vintage A.W. Faber calculating rule, a type of slide rule used for mathematical calculations before electronic calculators became common.
Manufacturer: A.W. Faber, a German company.
Era: Produced around 1882 to the mid-20th century.
Type: Duplex slide rule featuring logarithmic scales for multiplication, division, roots, and trigonometry.
Collector Status: Considered a rare and highly collectible mathematical instrument
selling as pictured.
more than welcome to pick up at shop in butler pa & save shipping.
022226 cg