To provide a coffin for eliminating the need of fixing a coffin body and a lid body with metal nails when a hearse leaves, preventing the generation of metal residuals after a cremation and solemnly gathering the ashes.

This coffin C is provided with the coffin body 1 whose upper part is opened and a lid body 2 which can be put on the coffin body 1. At a joined part 3 between the lid body 2 and the coffin body 1, seals 4 for the coffin on which matters regarding the deceased are displayed by characters are stuck and sealing is performed. The seals 4 for the coffin are stuck at parts other than the joined part 3 as well. On one end side of the length direction of the lid body 2, an openable and closable window part 22 is provided.