See page 334 from the book "Rodin et le bronze catalogue des oeuvres conservées au Musée Rodin” Tome 1 by Antoinette Le Normand Romain

 

Bronze with brown patina, signed « Rodin », cast from Barbedienne, bears the foundry mark and inscribed on the metal plate « L’ETERNEL(LE) PRINTEMPS AUGUSTE RODIN 1840-1917 », on its original marble base 
 63 casts of the present model were made
Circa 1898-1917