It’s from the A16 Allen and Ginter Premium Albums. Below is an excellent article which provides more background (see ‘Ginter Album Cuts’).
The Keefe looks very clean with no toning so may want to look at it under magnification. There are other examples where these thinner cut outs were placed in scrapbooks...likely done a long time ago in those instances as some of the cut outs came from extremely rare advertising pieces.
https://www.sportscollectorsdaily.co...ginter-albums/
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