'Gulfstream' was convertible to Replay or Add-A-Ball. This 1-player game used a "split bank" of relays to track two separate playfield objectives: the 1-9 numbers and the S-P-E-C-I-A-L rollovers. The "split bank" was also used in 2-player games such as Williams' 1971 'Solids N Stripes' to track a single playfield objective separately for each player. This game and its add-a-ball version Williams' 1973 'Tropic Fun' were the first Williams games to use their "gear" style of pop bumper cap. Production Run Records for Gulfstream: 4175 total Sample run: 93 Production Start Date: Oct-23-1972 / Production End Date: Dec-20-1972 First ship date: Dec-14-1972 / Last ship date: Unknown, remaining 1 shipped out with production games. Production Run: 4082 Production Start Date: May-24-1973 / Production End Date: Jun-28-1973 First ship date: May-24-1973 / Last ship date: Jul-12-1973 Product History Record for Gulfstream: Quantity produced for USA/Canada: 3181* Quantity produced for export: 994* Total quantity produced: 4175* BOM: $231.88 Price to Distributor: $470.00 *These quantities may be sales estimates.