MOULD signed by one of Suffolk's most famous residents has fetched more than £11,000 after going under the hammer at Sotehby's.The specimen, which is mounted under glass, bared the signature of Alexander Fleming, who was responsible for discovering penicillin in 1928.

MOULD signed by one of Suffolk's most famous residents has fetched more than £11,000 after going under the hammer at Sotehby's.

The specimen, which is mounted under glass, bared the signature of Alexander Fleming, who was responsible for discovering penicillin in 1928.

Fleming, who devoted his life to investigating the possibility of finding an effective antibiotic substance which would kill bacteria without harming cell tissue, lived in Barton Mills, near Bury St Edmunds, until his death at the age of 73 in 1955.

Experts at Sotheby's in London believed the mould, which measures just over an inch in diameter, would make between £4,000 and £6,000 when it went to auction last week - but were left shocked and delighted when it made £11,400.