1950-51 Ted Kluszewski Game Used Bat

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I recently won a bat in auction that came with a PSA/DNA letter. Labeling period was identified as 1950-1951. Bat is 36". After reviewing Malta's guide and the labeling examples, I am not able to pinpoint the exact label characteristics that would date the bat from the 1950-51 period. Can anyone please help me better understand the labeling period for the bat. Thanks, Mike