Supporting material lantern slide dated AD 1900s

Lantern slide with a photograph of wall paintings in tomb of Seti I. Nome gods bring offerings.
Hand-written text on passepartout: “WALL PICTURERES – TOMB OF SETI I – EGYPT 1905”
Signature in bottom-left corner: J. Johnston.

Object details

Reference: INV:12313
Material: glass paper photographic emulsion
Period: 20th century
Dated: AD 1900s
Object name: lantern slide
Dimensions: Height: 82.55mm (3 1/4 in.) , Width: 82.55mm (3 1/4 in.)