From Elton John's glasses to a Banksy triptych, a collection of more than 900 items and artworks belonging to the legendary British musician fetched more than $20 million at several auctions this month, Christie's said Thursday.Last September, thousands of items that belonged to late Queen frontman Freddie Mercury sold for 40 million pounds ($50.4 million), Sotheby's said. arb-gw/mdl