From Grizzlies Website:
May 17 Fresno Grizzlies vs. Albuquerque Isotopes

Both the Fresno Grizzlies (Giants) and Albuquerque Isotopes (Dodgers) will be wearing 1954-inspired jerseys of their parent club. All game-worn jerseys will be auctioned off after the game to benefit a select charity.
1954 New York Giants World Series Replica Ring
Add a little gold in your life by picking up a 1954 New York Giants World Series Replica Ring. The giveaway will be handed out to the first 7,000 fans through the gates!