£130
Interesting double weight pen/pencil harmonograph, with two pendulums suspended from a tripod support, one of which linked to a pen grip over a writing surface, bearing an ivorine plaque which reads 'G Ford Maker, Dinas Powys Oct. 1943', 43" high
works well as expected, some video footage on our socials, appears in fine condition
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Free Registration
30% inc VAT*
Flat Fee Registration
26.40% inc VAT*
