Actress Dame Sheila Hancock has offered a £500 reward to anyone who can find her treasured necklace, which went missing after a trip to the theatre in London. The sentimental chain holds rings belonging to her mother, father and two late husbands. Dame Sheila said on Monday: “I don’t wear jewellery very much … but I nearly always wear this chain with these rings because I like to take them with me … it means a lot to me, it really does.”.