~   SWISS MADE SURVEYING CIRCULAR SLIDE RULE ~

~ SWISS MADE SURVEYING CIRCULAR SLIDE RULE ~

$125

Country of manufacture

Switzerland

Categories: Calculating, Surveying Instruments & Mining

Description

    Show is a ‘ SWISS TOPO CIRCULAR SLIDE RULE ‘ .  I believe for surveying use.  12.7 cm.  Metal surround frame.  Clear celluloid cursors in each side rotate properly.  Excellent plus condition – no damage, stains, ink marks, etc.  Interesting and unsual… 

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Dealer information

US Stuart Johnson Antiques

Stuart Johnson Antiques

Located on the island city of Alameda on the San Francisco Bay.
My life as a collector began over 30 years ago, when on a whim, I stopped at a yard sale and happened upon an old ship's compass. I was instantly attracted to the brass, glass and mahogany, as well as the engineering involved in its construction. That interest led me to basements, attics, and long hours sitting at auctions in search of Scientific instruments and unusual antiques.
I'm delighted to be included in the Fleaglass site and will try to present ongoing offerings of science, maritime and technical items of interest. Thank you and enjoy...

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