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Westcott C-Thru Proportional Scale

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Westcott C-Thru Proportional Scale
Westcott C-Thru Proportional Scale
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The Westcott C-Thru Proportional Scale is used to calculate enlargements or reductions from 10% to 1000%, from 1" to 100". Made of tough plastic, it has large, easy-to-read markings. The Westcott C-Thru Proportional Scale can be used for a variety of applications, from quilts to photo enlargements a...

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