Mitchell Wire Forms with Matched Planes and Volumes

Kit, Learning

Accession Number: 1992.293

Description: "The Mitchell Forms consist of a set of geometric figures illustrating outline forms, planes and volumes commonly found in geometric problems. Corresponding figures in all three forms have been built to the same scale (the cube is 3" x 3" x 3"), so that the wire frames will fit over the planes of the same shape as well as over the planes of the solids of the same shape, and the planes themselves are of the same shape and size as the same planes on corresponding solids." -- APH product sheet. The wire outlines are made of 1/8 in. cadmium-plated steel wire; the volumes of brightly painted hardwood; the planes of brightly painted wood compostion. There are 24 wire frames, 15 solids, and 11 planes. The case is a hinged, wooden box painted red. APH catalog no. 1-0340.

Height: 5

Width: 28.75

Depth: 14

Date Made: 1951

Maker: Mitchell, Paul C.

Place of Origin: Louisville, KY

Collection: APH Collection

History/Provenance: APH Collection

Subjects: Geometry Instructional aids, tools, and supplies.

Dimension Notes: 5 x 28 3/4 x 14 in. case .

Made: American Printing House for the Blind

Material: Wood, steel

Updated: 05/06/2015