Alvin Professional Triangular Scales

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Architectural Scale
Architectural Scale
Current price:

Architectural  — Plastic 12" scale divided in 3", 1-1/2", 1", 3/4", 3/16", 3/32", 1/2", 1/4", 1/8" to the foot. One division in 16 parts to the inch.

Engineering  — Plastic 12" scale divided in 10, 20, 30, 40, 50, and...

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