Konrad Zuse Z3 computer relay based adder replica on display board
Actual adder replica is approximately 16 1/2 x 11 3/4 x 1 3/4. Broken "plexiglas" and peeling rotary-knob labels at upper left of adder replica. Displayed on a rickety easel.
overall: 28 1/2 in x 34 in x 2 in