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Assay laboratory
ARP15A03_326

Assay laboratory

Various mufles and tools, used for assaying gold and silver
ARP07111_009631P

Various mufles and tools, used for assaying gold a...

Essai du cuivre et du plomb
ARP07111_009633P

Essai du cuivre et du plomb

Assaying copper
ARP07111_009636P

Assaying copper

Assaying of silver : man making the cupels
ARP07111_009637P

Assaying of silver : man making the cupels

Assay laboratory with various forms of furnace
ARP07111_009665P

Assay laboratory with various forms of furnace

Assay laboratory for gold and silver
ARP07111_009668P

Assay laboratory for gold and silver

Metallurgy : assay laboratory
ARP07111_009669P

Metallurgy : assay laboratory