Aperçu gratuit du livre The Practical Gold-Worker, Or, the Goldsmith's and Jeweller's Instructor in the Art of Alloying, Melting, Reducing, Colouring, Collecting, and Refining
The Practical Gold-Worker, Or, the Goldsmith's and Jeweller's Instructor in the Art of Alloying, Melting, Reducing, Colouring, Collecting, and Refining