Gottlieb part numbers hint at a part's age

Gottlieb part numbers started at A-1 in 1946 and reached the 33,000 range by 1996. The A refers to the size of drawing sheet, not 'assembly'. So a lower number means an older design.

Systems

• Electro-mechanical

Related tips

• Gottlieb EM rubber part numbers and sizes

Source: Repairing Electro-Mechanical (EM) Coin Operated Games to 1978, Part Two, Clay Harrell (pinrepair.com)