Also produced in electromechanical as Stern's 1977 'Pinball' with the same model number 101. This game's concept comes from a Chicago Coin advertisement from the mid 1970's. A picture of this advertisement can seen on page 50 of "Pinball Machines" by Eiden & Lukas, 3rd edition.
Service Bulletin #7 indicates this game uses the same ROMs as Stern's 1977 'Stingray'.
Manufacturer data for Pinball SS:
Production Start Date: 9/6/77
Production End Date: 12/27/77
Quantity produced: 1654