This is a new unopened and unused 25 days of Christmas jigsaw advent calendar, Professor brand. Features a winter town scene. 500 pieces to the puzzle. Finished dimensions are 19” x 14”. States on the back of the box “… open the doors each day collecting puzzle pieces hidden behind them… until December 25…“ paraphrasing. The outer slip cardboard around the puzzle box itself slides off, see photos. However , the interior puzzle box itself has never been opened. Cute winter scene. 
