LSE4087354 Boilers for vulcanizing rubber by wet steam - in 'The wonders of industry' by Louis Figuier, 19th century by Unknown Artist, (19th century); Private Collection; (add.info.: Boilers for vulcanizing rubber by wet steam - in ??s??? The wonders of industry?????? by Louis Figuier, 19th century); Photo ?? Leonard de Selva.