Krave Antiques has dated this piece to the 1950s.
The underside is marked with the maker's details and also 1 1/2 oz.

A rare barware item that is an unusual collector's piece.
Marks: P.H.V & Co. Made in England. 1 1/2 OZ.
Dimensions: Diameter: 3 cm (1 1/4"). Height: 7 cm (2 3/4").
Condition: Excellent used vintage condition with only light signs of use in keeping with age.
Please note that only the measure is included and any other items in the pictures are for display only.
Krave Antiques has dated this piece to the 1950s.
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