Topps will hold its first ever “Collector Appreciation Day” across the country on Sept. 20, where card collectors can unlock a variety of rewards at several MLB ballparks as well as retailers by simply showing a Topps card.
Fans attending games in New York, Baltimore and Cincinnati can flash cards of the respective home team from any year to unlock free in-stadium food and swag. For collectors not in those cities, Topps has partnered with national retailers that have become more prolific within the hobby in the past year…