Seven Ball Balance - A Nerve Teaser.
It takes a steady hand and a lot of patience to get all seven steel balls to balance on their respective dimpled holes. The object is to get one of each of the seven balls into a compartment and then balance it on the hole in that compartment.
It can drive you nuts but it can be done.
These make a great gift or they can be made to be sold.
Two pages ( 2 sheets - front on each sheet ) B & W photos, illustrations, expanded view and instructional narrative.
My plans are from original source materials such as books, magazines and other publications and the pages are carefully removed.