Equipment - Beam Compass

Historical information

an instrument for drawing large circles or arcs, consisting of a horizontal beam along which two vertical legs slide.
Also called a trammel.

Physical description

Beam compass used for marking out an arc or circle; 25cm beam with 2 x 24cm extensions, 3 pencil lead holders and one nib in original box [damaged].

Inscriptions & markings

W. H. Harling Ltd. London.

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