Old advertising ashtray Bonnaud Cognac

Very beautiful and old advertising ashtray in glazed ceramic with a hollow marking "h. Bonnaud & c ° cognac". Notice to collectors, it must be quite rare because I did not find anything resembling during my research. It probably dates from the beginning of the 20th century. The color midnight blue, ink blue, is very pretty. No stamp underneath, it is a work of craftsmanship, the enamelling has multiple small "defects" of origin: small burst bubbles, reliefs, light burrs of one color on another. It has no cracks or defects on the "surface" but 4 small chips, two of which are more visible, on the lower perimeter, and obviously some stains under the ashtray. It measures 14.7 cm in diameter, 2 cm in height and weighs about 200 g.