2002.141.1

Cranmer Abacus prototype

Cranmer, Terrence V., 1925-2001

Abacus has a wooden frame covered with white lacquered plastic; blue wooden beads arranged in 13 columns on metal rods; each rod has 4 beads below and 1 above the crossbar; on front of the frame, beneath each column, is single raised dot, and raised line between each set of 3 dots; red felt backing keeps beads secure when set.

H-3.75 W-9 D-0.875 inches

before 1963

Item is from the estate of Terrence V. (Tim) Cranmer. The donor was his administrative assistant. The Cranmer Abacus was first produced in 1963 at the American Printing House for the Blind.

Gift of Susan Strange, 2002.14