Thesaurus

Devices for measuring the area of any plane surface by tracing the boundary of the area. MHDST2.

Objects

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Tracer arm for a planimeter

1940s-1980s

Planimeter part

1940s-1980s

Anchor arm for a planimeter

1940s-1980s

Orginal planimeter container

c 1954

Case for Ben Lexcen's planimeter set

c 1970

Anchor arm from a planimeter set

c 1970