Hemmi 275D 20 INCH Slide Rule. Expert Electrical Engineer. Duplex.Bamboo.Exclnt.

Description

• 20 Inch •
Hemmi No. 275D "Expert Electrical Engineer"
slide rule.
This is the 20 inch version of the 255D.
Celluloid on bamboo.
Duplex.
24 scales x 50 cm (20").
Green scale labels on cursor glass.
The 275D was made from 1963 to 1970. Only 7 years.
This rule has date code UF (June 1970).
Rule is in excellent condition. No blemishes. Appears unused.
Slide and cursor move smoothly and easily.
Metal parts are clean and bright.
This is a beautiful and very scarce slide rule.
Hemmi hard cardboard slip cap case is very good.
Has one end replacement and 3 small Japanese
characters on tongue of case under the cap.
Payment is due within 3 days after end of auction.
Buyer pays .80 shipping to USA address via Priority Mail 2 Day.