1/The bronzes are cast in limited series at  of 8+4 Artist's Proof, which confers upon them the title of original work, they are  cast by the Fundesti foundry (Valls, Spain), they are signed by the artist and bear the foundry stamp, as well as their number in the series.

2/The casting process is that of lost wax, the patinas are made by chemical reaction with acids.

3/Each bronze is accompanied by a certificate of authenticity, signed by the artist and the foundry.