HALL OF FAME INDUCTION 2019 Again, Post Office Here Offers Induction Stamp COOPERSTOWN – The post office here is again marking Induction Weekend with a souvenir picture postmark – also known as a pictorial cancellation in collectors’ circles — to be offered at a special postal booth 9-6 p.m. this Sunday in the post office’s parking lot. The postmark bears an image of the logo of the Baseball Hall of Fame and Sunday’s Induction Day ceremony date. The Postal Service…