Its design holdings include Europe's pre-eminent collections of ceramics and fine metalwork.
Bluing is also used for providing coloring for steel parts of fine clocks and other fine metalwork.
The business was operated by Russian serfs, some of them extremely skilled in fine ornamental metalwork, according to James Nasmyth's account.
A few secular pieces, such as mirror cases, jewellery and clasps have survived, but these no doubt under-represent the amount of fine metalwork owned by the nobility.
I'm no musician, but I know fine metalwork!
"This is fine metalwork," he observed.
Latticework patterns found on Debra Stark's fine metalwork are derived from the irregular veining of leaves and seaweed; she calls them her "trademarks."
These include tools, weapons, quernstones, imported pottery and motif-pieces and moulds for the manufacture of fine metalwork (especially jewellery).
Both gold and silver circles bore in low relief an image of the sun, surrounded by intricate fine metalwork suggesting leaves and vines.
Who did the finest metalwork in all the city?