The Standard Modular System (SMS) card is of unknown function, and contains discrete transistors and resistors. The circuit board is single sided and has 16 printed finger pins along one edge. There is only one sample of this particular model number.
Date
Circa 1959
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Model number
371325
Stamped along the edge of the component side of the board
Other number
EC 113095
Stamped along the edge of the component side of the board
Other number
YBC08JUL1
Stamped along the edge of the component side of the board
