Irvin "Zabo" Koszewski

Here's Irvin "Zabo" Koszewski (and his famous abs) on the cover of the March, 1966 issue of Mr. America Magazine. Zabo started competing in bodybuilding contests in 1948 and was still going strong when this magazine came out, in fact, he went on to finish second (to Frank Zane) in the Medium class at the 1967 IFBB Mr. America.

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Author: John Wood

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