Sold for:
$35

Albert Nestler "System Rietz" Slide Rule, with ivorine scale and printed table on reverse listing m3 weight and melting points of various metals and minerals, lg. 11 in., in maker's slip case.


Skinner

Auctioneer:
Skinner

Date:
2005-06-16

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Sold for:
$118

Dr. Janssen System Steam Engine Water Purity Slide Rule, by Albert Dargatz, Hamburg, with single slide and cursor, instructions on rear and slipcase, lg. 21 Read more…


Auctioneer:
Skinner

Date:
2002-04-13