This is a New 1955-57 Chevy reproduction pair
One of the options you could order for your 1955-1957 classic Chevy at the dealer
was having the doors, trunk and glove box keyed alike.
Long pawl locks were used on all 1955 models and 1956-1957 4-door hardtops.
Please check your vehicle before ordering.
The # 15517 looks similar to the #15518 shown and will work on any 1955-1957 classic Chevy with long pawl locks.