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Subject:
Re: Collectors are especially partial to trammels

Dick Coers
I'd suggest making it from hickory, or fruit wood like apple or pear. Beam compasses were my drafting bread and butter when I was a draftsman in the gas turbine division at Caterpillar in the early 70s. We drew so many circles, on a single print, we had to use a plastic center on the mylar or vellum to keep it accurate.

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