1950s German Barometer Porcelain Dial F*S Hermes knob replacement you would form one letter

you would form one letter at a time with the scriber

The Slide Rule is an instrument for facilitating calculations and is an indispensable aid not only to the engineer and scientist with their involved problems

This is in superb working condition

that could be attached or detached at the base using a large pair of brass hooks to make it easier to don the heavy pack

Adler J2 - J4 Manual Typewriter owner's manual This is a downloadable PDF and a high-quality digital photo-scan of an Adler J2 - J4 manual

1950s German Barometer Porcelain Dial F*S Hermes knob replacement you would form one letter1950s German Mid Century modern barometer. Very nice condition, glass and porcelain gauge face are in excellent shape, very minor wear on wood edges and some fading on the top of the brass. This is a compensated barometer, made in West Germany and is not influenced by temperature Measures 7 1 2"diameter X 2 " deep. Great for hanging on wall with original hanger. Classic Mid Century Modern Style!!!!!