Flexible curve with graduations and sealed ends.
A set of 3 Burmeister design french curves
Oval section engineering scale rule with scales – 1:1, 1:2, 1:5, 1:2.5 & 1:10, 1:20,1:50, 1:100
Scola-Ruli 20cm 100% accurate 1:1 scale ruler. The bottom edge is stepped – press on it and the front lifts up – now easy to pick up, the stepped…
30cm long rolling ruler, a handy drafting tool