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In hobby circles, television personality Keith Olbermann is known as a supercollector.
But many people familiar with his work might not know that long before he was on MSNBC or ESPN, he occasionally wrote about baseball cards for hobby publications.
And this summer Olbermann will have a series of pieces in Sports Collectors Digest, a weekly hobby newspaper. The series will showcase his collection of rare Topps proof cards and offer the stories behind some of the cards that were made for in-house work at the company in the past but never saw the light of day.