Aluminium ashtray of man and horse, and dog jumping over fence

Artifact
Accession Number:
91.3.1
Materials
Aluminium
Measurements
8cm (width) 8cm (length)
Description
Round aluminum ashtray engraved with figure of man riding a horse in traditional English riding gear, including a top hat and long jacket. He is jumping over a picket fence, holding onto the reigns with his left hand, and hold a whip with his right hand. A dog runs beside them. Edge of ashtray is raised with uneven border. 
Marks/Labels
Accession number 91.3.2 marked at the bottom
Category
Ashtray