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Fedra Log Log Closed Duplex Slide Rule - 1968 - Used once in Classroom Setting For Sale
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Fedra Log Log Closed Duplex Slide Rule - 1968 - Used once in Classroom Setting:
$15.95
Fedra Log Log - Closed duplex - Aug1968
Made in East Germany possibly by Veb Mantissa
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: 27cm, S, ST, T, LL1, LL2, LL3, 10.75 inch
Back Slide: [Greek Alphabet]
Same as Staedtler Mars 544-52 Log Log
Sets of this model of slide rule are the most often requested by teachers for the ISRM Slide Rule Loaner Program for Schools. We send them out at our cost and they are returned at the end of the school term.
We have an excess of almost-new specimens in a clear hard case, Brief Instructions and care insert. These were sent for to a school and used once for a couple of days in a classroom setting. The manuals were folded up so they could be returned in the plastic shell.
Funds go to support the International Slide Rule Museum website and educational initiatives.
Fedra Log Log Closed Duplex Slide Rule - 1968 - Used once in Classroom Setting $15.95
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