Nudgy / IPD No. 1686 / September 17, 1947 / 1 Player Manufacturer:Bally Manufacturing Corporation (1931-1983) [Trade Name: Bally]Project Date:September 17, 1947Model Number:503Type:Electro-mechanical (EM) Serial Number Database:View at The Internet Pinball Serial Number Database (IPSND.net) (External site)Specialty:Flipperless Notable :5 balls for 5 cents. Passive bumpers (9), Kick-out holes (4) Reactions: JonPurpleHaze and xenonph