No 4 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

300mm Dividings: 1:100 x 1:200, 1:250 x 1:300, 1:400 x 1:500