How to Uncurl Vintage Photographs

As a collector of 19th- and 20th-century photography, I have frequently encountered a problem with vintage photographs curling up when the climate is dry or due to heating during winter. Photographic prints are very sensitive to dry air. For years, I didn’t know how to solve this problem, so I stored the prints in tubes to protect them. Recently, I learned of an easy way to unfurl photos. Here is a video of my homemade solution to this common issue.