19th Century Empire French Ringed Double Sided Stone

19th century ringed double sided stone french empire tub empire tub in double-sided stone with rings height 52cm width 86cms length 150cm internal depth of the basin 45 cm weight 550 kg material limestone internal measures 120 x 58 cm good conditions. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no
official proof of authenticity,
however it is well documented in design history. I take full responsibility for any authenticity

issues arising from misattribution