Keuffel & Esser Slide Rule Pat Dates #4088-3
Unavailable
Keuffel & Esser Co. NY antique slide rule. Pat June 5 1900 and Dec. 22 1908. Sliding rule with silver type trim. Marked 4088-3 on sliding window portion. Original brown leather carry case included.
W=1.25 in. x L=12 in.
W=1.25 in. x L=12 in.
Fleatique
Highland Hts, Ohio
Dealer accepts: PayPal, Money Order, Check
Shipping: Negotiated with Seller