This fascinating video from Posterfix in New York shows their full restoration of a Houdini Master Mystery 1-sheet poster. I might have argued to leave the poster fragment as-is until I saw the final product. Pretty amazing. The video also shows the restoration of a Master Mystery lobby card and three Houdini handbills from 1902.
Posterfix also took on the task of restoring five Houdini window cards from the recent find in Warwick, Rhode Island. One of those restored cards sold last month in a Potter & Potter auction. That video below.
Thanks to Michael Mitnick for the alert.