1969 Sama & Etani Circular Slide Rule, Instruction Book, Conversion Tables,case

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1969 Sama & Etani Circular Slide Rule, Instruction Book, Conversion Tables,case:
$24.99

GREAT OLD CIRCULAR SLIDE RULE WITH OTHER CONVERSION CARDS WHICH ARE ON BOTH SIDES. THEY ALL COME IN THE HEAVY PLASTIC POCKET HOLDER. ALSO THE REFERENCE BOOKLET. This is the one I used in college first semester. We had slide rule drills! Second semester I bought a Commadore calculator with constant and memory for $149.