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ddb 20100812 010-014
ddb 20100812 010-014

W. M. Welch Company pocket sliderule. This is made of folded plastic sheeting, the slide slides very stiffly after all these years. It was pretty clearly a promotional giveway.

W.M. Welch Company; sliderule

IPTC Information

Caption: W. M. Welch Company pocket sliderule. This is made of folded plastic sheeting, the slide slides very stiffly after all these years. It was pretty clearly a promotional giveway.

Date: 2010:08:12

Location: Blaisdell Poly, Minneapolis, MN, USA

Keywords: W.M. Welch Company; sliderule

Photographer: David Dyer-Bennet, Copyright 2010

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David Dyer-Bennet