This is a ceramic, branded advertising ashtray for the French mineral water brand Perrier. The green and golden-yellow matches the historical colour of Perrier labels and the shape resembles an upturned a metal bottle cap.
This form allows the maker to do without the usual cigarette grooves, so it's just as much a pin or knick-knack dish as it is an ashtray.
Perrier, currently part of the Nestlé group, is of course a world-famous French brand of carbonated mineral water. It comes from Vergèze located in the Gard department of Southern France. The phrase "Model déposé" means that the design and \ or trademark is registered.
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