Substantial collection of ballpark and related postcards from the 30's-90's, the majority of which have not been postally used, though several postally used examples will be found throughout. Approx. breakdown of postcards included: 1930's-50's: 50%, 1960's: 25%, 1970's-90's: 25%. Condition across the group ranges from GD-VG/EX. From the personal collection of longtime Baltimore-area broadcaster, Ted Patterson.