Jacques Helft, in his catalogue of the 1971 David-Weill sale, described this piece as made in Flanders circa 1500. He, however, orally expressed the opinion that it might be Spanish as well.
A Spanish origin is indeed much more probable as there is in the Museo Lázaro Galdeano, Madrid, a small silver-gilt bowl resting on supports comprising castle and tower - shaped architectural elements, and figures of reclining lions very similar to the present piece.
Although the Madrid piece too is unmarked, José Manuel Cruz Valdovinos (Plateria en la Epoca de los Reyes Catolicos, no. 125) does not doubt its being Spanish and even suggests a Valladolid origin.