The signature has been authenticated and graded by JSA with a grade of MINT 9. Full letter JSA COA.
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://i.ebayimg.com/images/g/TncAAOSwLyNhHpaW/s-l1200.jpg)
Willie Mays Signed San Francisco Giants Game Issued Jersey JSA Graded MINT 9
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://i.etsystatic.com/14505215/r/il/1a1206/4829787274/il_1080xN.4829787274_r71q.jpg)
Barry Bonds Autographed Signed Framed San Francisco Giants
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://images.footballfanatics.com/san-francisco-giants/rare-1989-willie-mays-game-used-san-francisco-giants-signed-old-timers-jersey_ss2_p-10996898+pv-4+u-vm6y5aoh3pu87ky96awv+v-ptbuatebghepqhghtfyw.jpg?_hv=2&w=900)
RARE 1989 Willie Mays Game Used San Francisco Giants Signed Old
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://images.pristineauction.com/283/2831537/main_1692203148-Willie-Mays-Signed-Sports-Illustrated-Custom-Framed-Magazine-Cover-Display-JSA-PristineAuction.com.jpg)
Willie Mays Signed Sports Illustrated Custom Framed Magazine
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://images.footballfanatics.com/san-francisco-giants/early-career-1950s-willie-mays-signed-game-used-nl-giles-baseball-jsa-coa-auto_ss2_p-11005918+pv-6+u-12wculjc4nlmka9hp1kr+v-piunovvygksiotgvibym.jpg?_hv=2&w=900)
Early Career 1950's Willie Mays Signed Game Used NL Giles Baseball
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://m.media-amazon.com/images/I/61NYpIkjZZS._AC_UF350,350_QL50_.jpg)
Willie Mays Autographed Cream San Francisco Giants Jersey
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://m.media-amazon.com/images/I/51sYFKVtW3L._AC_UF1000,1000_QL80_.jpg)
Willie Mays Autographed Cream San Francisco Giants Jersey
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://ansel.frgimages.com/san-francisco-giants/willie-mays-signed-san-francisco-giants-1989-game-issued-jersey-jsa-coa_ss2_p-13672663+pv-1+u-8cbx10p56ua8n4j22xpy+v-kbyrhyxlrkyuxvfpwlga.jpg?_hv=2&w=900)
Willie Mays Signed San Francisco Giants 1989 Game Issued Jersey
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://i0.wp.com/auctionofchampions.com/wp-content/uploads/2023/08/8823BIN039051.jpg?fit=998%2C1213&ssl=1)
Haven Moses Bills Mafia Signed Buffalo Bills Custom Jersey (JSA
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://m.media-amazon.com/images/I/41BnOZMZ4VL._AC_UF1000,1000_QL80_.jpg)
Willie Mays Signed Authentic San Francisco Giants Game Issued
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://collectiblexchange.com/cdn/shop/products/1294236_1024x1024.jpg?v=1694068056)
San Francisco Giants – CollectibleXchange
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://i.etsystatic.com/14505215/r/il/336ed9/4417069229/il_1080xN.4417069229_2lx1.jpg)
Willie Mays Autographed Signed Framed San Fransisco Giants
![Willie Mays Signed Authentic San Francisco Giants Game Issued Jersey JSA COA](https://mem-expert.s3.us-west-2.amazonaws.com/wp-content/uploads/2018/09/06152656/146247-70_01.jpg)
1960 Giants Team-Signed Baseball – Willie Mays, etc. – COA JSA