No 809 Verulam Imperial Architects Scale Rule 12 Inch

• Imperial Architect's Verulam scale rule 
• Professional quality
• Exceptional clarity and legibility
• Unequalled accuracy and design
• Material is chosen for its toughness and stability
• Also available in 6" length

12" Imperial Dividings: 10ft = 1"x20ft = 1", 30ft = 1"x40ft = 1"