Signed Authentic 1990 Seattle Mariners Game Model Jersey JSA COA. Signed Authentic 1990 Seattle Mariners Game Model Jersey. The jersey has some tape residue from a previous frame job. Please see the photos. Full letter JSA COA. We specialize in sports autographs and memorabilia. We have one of the largest selections of baseball autographs in the country. The item “Ken Griffey Jr. Signed Authentic 1990 Seattle Mariners Game Model Jersey JSA COA” is in sale since Thursday, June 13, 2019. This item is in the category “Sports Mem, Cards & Fan Shop\Autographs-Original\Baseball-MLB\Jerseys”. The seller is “showpiecessports” and is located in Deal, New Jersey. This item can be shipped worldwide.
- Autograph Authentication: James Spence (JSA)