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ddb 20100812 010-009
ddb 20100812 010-009

Frederick Post Company circular sliderule. I think this was probably quite a good one, but I never really learned to use it beyond the most basics, and never used it much.

Frederick Post Company; circular; sliderule

IPTC Information

Caption: Frederick Post Company circular sliderule. I think this was probably quite a good one, but I never really learned to use it beyond the most basics, and never used it much.

Date: 2010:08:12

Location: Blaisdell Poly, Minneapolis, MN, USA

Keywords: Frederick Post Company; circular; sliderule

Photographer: David Dyer-Bennet, Copyright 2010

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ddb 20100812 010-009
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David Dyer-Bennet