Glass plate negative depicting the method by which two daguerreotypes of Prince Albert were photographed. Originally taken in 1842, the daguerreotypes are the earliest photographic portraits taken of a member of the British royal family.

The original daguerreotype of the portrait at the bottom survives in the Collection, see RCIN 2932488.

The glass plate negative has been photographed showing the coated side and therefore the image appears laterally reversed. Prints from the copy negative of the daguerreotypes exists in the Collection, see RCINs 2931356.a and b.