Written on the left side of the object in two places
overall: 7 in x 5 1/2 in x 8 in
The object apparently was used to control the ECHO IV Home Computer CPU. It has 16 keys: 10 numbers, 2 special characters, and 4 letters (R, S, T, and V). Also on the object are 5 indicator lights, one red and 4 white. The word ECHO is etched on a metal panel attached to the object. The keys are plastic, but various parts inside the object are wood. Attached to the object is a connector cable with 18 pins.