Puckerings has dated this piece to the 1930s.
The makers initials are also present for the top-notch silversmith, Finnigan's.

The top of the lid is covered with a fabulous shade of blue guilloche enamel with a good shiny patina showcasing the Art Deco engine turning below.
Excellent undamaged condition. The diameter measures 2 1/2" and stands 2" tall.
Item ID:37300
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Puckerings has dated this piece to the 1930s.
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