Martin Jacobs with some of his 49ers memoribilia in his home on Thursday, January 24, 2013. Jacobs has been collecting 49ers memorabilia since he was a kid watching games at Kezar Stadium. Now, the retired San Francisco resident has what might be the biggest 49ers memorabilia collection in the world and keeps some of it in his San Francisco, Calif., home. Photo: Carlos Avila Gonzalez, The Chronicle / ONLINE_YES
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