1971 Topps Steve Blass
Steve Blass Signed Pittsburgh Pirates Jersey (Beckett) 1971 World Seri – Super Sports Center
The day the Pirates fielded the first all-Black and Latino lineup
1971 World Series Champions Pirates Multi-Signed Baseball with (17) Signatures Including Roberto Clemente, Willie Stargell, Bill Mazeroski (JSA LOA)
The best players to wear every jersey number in Pirates history - The Athletic
Steve Blass Baseball Stats by Baseball Almanac
STEVE BLASS Signed Autographed MLB Ball "1971 WS Champs" Pittsburgh Pirates COA
1973 Topps #95 Steve Blass VG Pittsburgh Pirates - Under the Radar Sports
Joe L. Brown built Pirates' last 3 championships
Sold at Auction: 1971 Pittsburgh Pirates WS Champs Signed Baseball w/22 Signatures Including Roberto Clemente (PSA LOA)
Bob Robertson Signed Official MLB Baseball with 1971 WSC — TSEShop
2020 Topps Heritage High Number Baseball Checklist, Variations, Boxes