French Faience Rouen Octagonal Pottery Item

I'm not sure what this French faience octagonal pottery item would be used for - pot pourri perhaps, or a night-light holder. There is the main hole in the top and four small holes. On the side are two small holes that have been drilled (photo 5), for wires perhaps. Blue mark on the base as shown for Rouen, I think. 3 3/4" across (9.5cm), 1 3/4" deep (4.5cm).

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