ECHO IV module
Sutherland, James F.
||Etched on both sides of circuit board
||Etched on rear of circuit board
||Molded on top of green component
||TESTED M20 No. 6
||Stamped on back of circuit board
||Stamped into handle
overall: 5 1/2 in x 9 in x 1 in
There are 16 green modules on the board. Date printed on front of circuit board is "DEC 21 60." Date hand written on edge of circuit board is "10/11/69."
Gift of James F. Sutherland