Description: Antique 1917 publication for use of Polyphase Keuffel & Esser Co. / Mannheim & Duplex Slide Rules. Complete manual by WM. Cox. 60 pages + 8 page supplement pages + 3 pages of "new" slide rules photos & descriptions. Book measures roughly 6" x 9".
Price: 10 USD
Location: Grand Rapids, Ohio
End Time: 2024-10-20T16:44:16.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
