A lottery prize of £83,107 has yet to be claimed in Preston.
The search is now on to find the owner of the winning ticket, who matched five numbers and the bonus ball in the National Lottery draw on Saturday, December 14.
The winning numbers on that date were 13, 21, 24, 29, 35, 41 and the bonus ball was 8.
The lucky ticket-holder has until Thursday, June 12 2014 to claim their prize.
If no-one comes forward with the winning ticket before the prize claim deadline, then the prize money, plus all the interest it has generated, will go to The National Lottery Good Causes.
A National Lottery spokesman said: “We’re desperate to find this mystery ticket-holder and unite them with their winnings – this amazing prize could really make a huge difference to somebody’s life.
“We’re urging everyone who bought a ticket in this area to check their old tickets again or look anywhere a missing ticket could be hiding. “
Players are urged to check pockets of clothing, in wallets, bags and down the back of the sofa.