Vintage 2012 - Metropolitan Museum of Art - Avian Holiday Pop Up Advent Calendar Inspired by Artist Adolf Dehn (1895 - 1968) Birds and Tree All 24 birds and star pieces are included. The numbers are on the back. Birds hook onto the tree. Each day another decoration is opened to put on the tree. Reusable every year! A collectors item! **Size of Item** Fully Open: 31in W x 14in L Tree When Upright: 15in H x 15in W Closed: 14in W x 13in L Condition: Used but in great condition. All days have been opened. All pieces will be sent in a zip lock bag. No tears or rips. The item will be shipped as shown in all of the photos so please see EVERY photo for the exact item description. Ships from a smoke free home! Thanks for checking out my store of treasures!