Photographer, YouTuber and self-proclaimed weird lens aficionado Mathieu Stern is back at it again, this time with an interesting new video showing how he developed a number of 120-year-old photographs he found hidden within a time capsule in a family home.

In speaking with DPReview, Mathieu says he ‘found a box dating from around 1900 judging by the objects and the technic of the photos found inside.’ To help bring the negatives to life, Mathieu decided to develop the images using a time-appropriate method of making prints, cyanotype.

The six-minute video first walks through the discovery process of the time capsule and the items within. From there, Mathieu shows the process he used to create the cyanotype prints and concludes the video with an overview of all the images he found.

It’s an unassumingly touching video that shows how seemingly simple snapshots can oftentimes have some of the most profound emotions behind them.

You can find more of Mathieu’s work on his YouTube channel.