Nightmare Before Christmas 20th Anniversary - Railroad Mystery Collection is
an open edition Disney pin, released in 2013, part of the Railroad Mystery Collection series.
Featured characters:
Jack Skellington, Zero, Lock, Shock, and Barrel, Sally, Mayor, Dr. Finklestein, Corpse Kid, Oogie Boogie, Scary Teddy, Toy Duck .
Released for Nightmare Before Christmas.
This mystery collection features pins on train cars that link together. Each mystery box contains randomly selected pins.