Fotoreproductie van een prent, voorstellende een portret van Joseph Petzval before 1905

This is a photographic reproduction of a print depicting a portrait of Joseph Petzval, a Hungarian physicist and inventor credited with developing the Petzval portrait lens. The image is likely a photograph of a print made before 1905, as indicated by the metadata. Petzval was a key figure in the history of photography, and his work was groundbreaking in the field of optics. This portrait serves as a reminder of his significant contributions to the advancement of the technology and art of photography.