The IBM Series/1 was introduced in 1976 and withdrawn in 1988. There were originally 2 models and another 2 models were added later. I always knew them by their code names — different varieties of peaches…so named because they were developed by IBM’s GSD division which was headquartered in Atlanta, GA (even though all of the development was done in Boca Raton, FL).
We'd get it for the VCFed museum, but we already have one and time/bandwidth are spread thin right now.