Jack-N-Jill, from 1948, is the fourth flipper game ever made by Gottlieb. It's a great game, with an amusing theme, and Mr. Pinball lists it as the second most valuable 40s game, behind only Humpty Dumpty.
The game is very nice, was recently rerubbered, and is working completely, including the projector unit that displays the number of credits.
Please see the pictures for condition. The playfield is very nice, and the cabinet is also very nice. The backglass is mostly glass, but there is enough paint left to see the score, and the JACK/JILL letters (but it is hard to make out the number of credits). Reproductions have been made, and are scheduled to be reissued shortly. Click on any picture for a closeup.