anonymous

First, the White House is considering letting Nvidia sell more of its chips to China, according to two reports at the end of last week from Reuters and Bloomberg, both of which cited anonymous sources.

"She really wanted a normal life," her friend who asked to remain anonymous told the BBC.

A South African professor who asked to remain anonymous told the BBC she had taken leave so she could travel to Johannesburg from Free State province to take part in the silent protest.

He sent an anonymous reply, again via the clinic, signed "your unknown friend".

The bidding war stretched 20 minutes before a different anonymous collector bidding over the telephone and lobbing bids in multimillion-dollar increments eventually won the work.