IBM 1620 module
493199 is printed on the solder side of each of the 24 modules that make up this object record. There are various numbers written on masking tape and adhered to each.
International Business Machines (IBM)
||Printed on the solder side of the module
overall: 3/8 in x 2 5/8 in x 4 1/2 in
Gift of Dave Babcock