I found this Williams parts catalog in the cabinet of a machine I brought home. Owner didn't have the keys, I could hear it rattling around in the cabinet but didn't find out what it was until I got the game home and drilled the lock. I think it's from the early-mid 80s? There's a bowler parts section and a video game parts section too (the video game section is empty).
Pretty cool relic from pre-internet days...
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