Professional Triangular Architect Scale

Description

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 60 decimal parts to the inch.