Corvidae Antique has dated this Egyptian Revival Propelling Pencil to the 1920s.
At the time of writing we also have a similar, smaller, Art Deco Egyptian pencil, see photos.

SIZE: Approximately 1.5 x 5.3cm, 10cm when fully extended, not including the bail.
WEIGHT: 15.3g.
MATERIALS: Gilded silver, enamel.
HALLMARKS/STAMPS: The bail is stamped 800 (silver fineness).
ERA: Art Deco c.1920s.
Corvidae Antique has dated this Egyptian Revival Propelling Pencil to the 1920s.
Hand picked jewellery from a friendly family business
You can view the stock and full dealer information on the Corvidae Antique Profile Page