You can find any ruling in the Official MLB Rules. These rules are available for download at the official MLB website.
Dubble Bubble
spalding
no.
No
1901
1986
MLB Official 1995 World Series Film - 2013 was released on: USA: September 2013
MLB Official 1991 World Series Film - 2013 was released on: USA: September 2013
No. These are official games.
About $20 for an official MLB hat and around $15 for a none official hat.
Rawlings make Official Major League Baseballs