No 45 Verulam B RIBA Architects Scale Rule 6 Inch (150mm)

• RIBA 'B' Architect's Verulam scale rule 
• Professional quality
• Exceptional clarity and legibility
• Unequalled accuracy and design
• Material is chosen for its toughness and stability
• Imperial and metric dividings 
• Also available in 12" (300mm) length

6" (150mm) Dividings: 1:5x1:10, 1:20 METRIC TO IMPERIAL, 1:50x1:100 (Figured ft) 'B'