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Natrometer 1925 Code instuctor! Beautiful Condition!
$128.50 USD

Sold on: 2013-Sep-05

Marketplace: eBay
1 Treasure
0 Trash
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Detail:

The Natrometer, a great invention in it's day. It was sold by the National Radio Institute in 1925. There were extra cylinders available at the time so as to not have repetition in the code. It is run...




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