This great Scale Divider from Derwent enables you to accurately transform the scale of your image from 4:1 to 1:4. Perfect for getting perspective right.
Triangular section, metric 30cm / 12" rules. Scales featured 1:1, 1:10, 1:2, 1:20, 1:5, 1:50, 1:100, 1:200, 1:500, 1:1000, 1:1250, 1:12500. In a protective plastic sleeve
This great flexible curve ruler comes in 5 sizes. Exceptionally flexible it is made from vinyl which does not discolour or decompose, the core is lead and there is a raised edge for ink ruling.
Enlarge or reduce drawings from 1:5 to 15 times in one go with this brilliant, wooden pantograph. Full instructions included.