No 4 Verulam Architects 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

1:100 x 1:200
1:250 x 1:300
1:400 x 1:500