Seagreen
New member
Can anyone remember a type of parallel ruler that was pantographed by tapes? Called 'Chart- mate' or 'Chart buddy' or ruler mate.
It was a clear ruler on a hub, attached to a pair of sprung tapes within a black casting and that sat screwed in the top left corner of the chart table.
Are they still around? And what are they called?
It was a clear ruler on a hub, attached to a pair of sprung tapes within a black casting and that sat screwed in the top left corner of the chart table.
Are they still around? And what are they called?