This is the add-a-ball version of Jacks Open. One of the important features is the open inlane on both sides which let’s you drain your balls to the outlane.
Lucky Hand Pinball Mods

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Gottlieb, 1977 Pinball Mods
Manufactured By: D. Gottlieb & Co.
Date: June 1977
This is the add-a-ball version of Jacks Open. One of the important features is the open inlane on both sides which let’s you drain your balls to the outlane.