This is so typical misuse of items donated to museums. These overpaid curators need money for their salaries. They have no idea how to present the institutions works to make it a profitable concern. People should never donote historic items to museums, only loan them on the basis that the items are fully insured against loss and theft. The loss of these very historic items to a Russian collector or whoever is an absoluter shame, and the museum concerned should now pick up on the issue and start a sacking campaign and get rid of these idiots they have on staff (notice I don't use the words "working at the establishment". In a time when institutions are returning historical items to native cultures, you have an organisation dumping theirs. I am really shocked to the core. I would suggest legal action against the museum and the buyer for the return of the items to their original owners.