Linen tester
A linen tester is a strong magnifier with a measuring scale and a built-in stand. The linen tester was invented to check the quality of woven fabrics.
A linen tester is a strong magnifier with a measuring scale and a built-in stand. The linen tester was invented to check the quality of woven fabrics.
A linen tester is a strong magnifier with a measuring scale and a built-in stand. The linen tester was invented to check the quality of woven fabrics.
Source: Wikipedia "Linen tester" · CC BY-SA 4.0
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