First Day Cover
Polio Pioneers
Dgn 227
$4.00
Sc. 3428/3435 on a 5"x7" Dragon Card with a B&W photo of a little girl being given the polio vaccine in 1954. Salk and Sabin stamps, plus Sc. 1087 Polio (1957). Salk First Day of Sale pictorial cancel from Pittsburgh (nationwide release). Great for a medicine- or health-on-stamps collection!