Class of the Titans
A recent discussion about instruments named after mythological figures brought to mind the "Titan" Combination Compass, a simple design that aimed to provide a full drawing set in a box.…
The Armstrong scale: a hypothesis
Among the more ubiquitous instruments named after their inventors - from Captain Field's parallel to the Napier compass, Gunter's chain to Marquois' triangles - arguably the most widely-known and numerous…
Philden-Coyne Students’ No. 1 geometry set
School geometry sets have always been tangential to my main interest in professional drawing instruments, but occasionally something odd will catch my eye. This particular set attracted no attention on…