This Rawlings official American League baseball was signed by 25 members of the 1979 Baltimore Orioles and Cal Ripken, Jr.

Signatures include:

Earl Weaver, Jim Frey, Jim Palmer, Benny Ayala, John Lowenstein, Eddie Murray, Bill Smith, Ray Miller, Cal Ripken, Jr., Doug DeCinces, Wayne Krenchicki, Terry Crowley, Al Bumbry, Ken Singleton, Kiko Garcia, Sammy Stewart, Mark Belanger, Tom Stoddard, Rich Dauer, Pat Kelly, Lee May, Rick Dempsey, Dave Skaggs, Elrod Hendricks, Gary Roenicke, and Steve Stone

It appears someone mistook this already signed 1979 ball for a 1983 team ball as someone wrote "83 O's" on the ball and added Ripken.

This baseball includes a letter of authenticity from JSA.