meilograph

Map measure of the month: the Radix

The Radix Map Measurer was invented by Louis J Petion. The simple pen-shape design is its greatest fault

Map measurer of the month: the Silva scale lanyard

The scale lanyard from compass manufacturer Silva is an interesting innovation but ultimately a failure in design

Map measurer of the month- the Mile-O-Graph

The Mile-O-Graph is an intuitive map measurer introduced in the 1950s

Map measurer of the month: The Roller Rule- “The Pencil with a Brain”

The Roller Rule was invented by John Hoe Morehead of […]

Map Measurer of the month- Pif gadget No. 342 ‘le curvimètre’

Pif gadget was a French magazine for children that included […]

Map measurer of the month- Stanford’s opisometer

An opisometer is a curious instrument. As soon as you […]

Map measurers

Map measurer, opisometer, curvimetre, mile-o-graph, meilograph, chartometer, call them what you will, in the era of digital mapping, who uses such an antique analogue object today? Well, Three Points of […]