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The infamous IBM Boulder on the descent (approx 8 feet in diameter).
ID 105814370 ·

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George Bell
Apr 10, 2006
The infamous IBM Boulder on the descent (approx 8 feet in diameter).  
Why is it called the IBM boulder? Oct 2, 2006
M. Morley
Sacramento, CA
M. Morley   Sacramento, CA  
Maybe this will help. The old IBM Selectric typewriters used such "typeballs". Oct 2, 2006
George Bell
Boulder, CO
George Bell   Boulder, CO
The link above seems to be dead. Here is a Wikipedia entry with a photo of a typeball. Oct 17, 2008

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