Imperial Architects Verulam Triangular Scale Rule 300mm

• Professional quality triangular Verulam scale rule 
• Manufactured to the highest standard under controlled conditions
• Exceptional clarity and legibility
• Unequalled accuracy and design
• Material is chosen for its toughness and stability

12" Fractional Dividings: 3/32”, 3/16” = 1 ft x inches (16ths), 1/8”, 1/4” x 1/2”, 1” = 1 ft, 3/8”, 3/4” x 11/2”, 3” = 1 ft