Pair of French vases in colored lead crystal, made between 1949 and 1951 in a laboratory in the district of Nancy (France), famous for the high concentration of factories and craftsmen specialized in crystal processing (Daum, Baccarat, Saint Louis , etc.). The vases are made of crystal with a percentage of over 30% of lead oxide (a material developed in England by George Ravenscroft in the second half of the 17th century); to obtain the intense red color, compounds containing copper and gold chloride were added to the crystal during the melting phase; the glass masters then modeled the final shape of the vases; once cooled, they cut and polished the edge in a decorative way, while the body and also the underlying part were enriched by hand grinding and meticulous care using small circular stone wheels.
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SILVER Seller in Prato, Italy
