XEE4147840 Coal mines in the 19th Century - Mining of coal mines in the 19th century - Engraving in ??????Sciences at the reach of all - Popular physics and chemistry??by Alexis Clerc - Late 19th century - Private collection by French School, (19th century); Private Collection; (add.info.: Coal mines in the 19th Century - Mining of coal mines in the 19th century - Engraving in ??????Sciences at the reach of all - Popular physics and chemistry??by Alexis Clerc - Late 19th century - Private collection); Stefano Bianchetti; French, out of copyright.