Ryne Sandberg – SABR's Baseball Cards Research Committee
SABR's Baseball Cards Research Committee – Page 20
SABR's Baseball Cards Research Committee – Page 20
Juan Pereira (@JpHouSports) – SABR's Baseball Cards Research Committee
Pat Neshek, Card Collector – SABR's Baseball Cards Research Committee
On the alluring promise of an unopened pack – SABR's Baseball
Death of a Museum – SABR's Baseball Cards Research Committee
1972 Topps AL ERA Leaders (Vida Blue/Wilbur Wood/Jim Palmer)
Vida Blue Gallery Trading Card Database
May 28, 1971: Sonny Siebert outduels Vida Blue – Society for
Vida Blue Gallery Trading Card Database
SABR's Baseball Cards Research Committee – Page 20