No 0 Verulam Architects Engineers Triangular Scale Rule 12″ / 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

1:2.5 x 1:5 1:10 x 1:20 1:50 x 1:100