Auction Disappointment

Yesterday the museum failed to secure a painting of Cecil Williamson which had come up for auction in Plymouth.
The painting was by the late Robert Lenkiewicz and was undertaken shortly before Cecil died.
Graham had particularly wanted the portrait for the museum as he had taken Lenkiewicz to meet Williamson in his nursing home and witnessed the artist at work on this particular portrait. The museum took the bidding up to £4000 but this was not enough to secure the picture which finally sold for £4200.
Whilst it is disappointing not to have secured this important portrait, the museum has limited funds and must spend its money carefully.
I wonder who the successful bidder was?