(Reuters) - De La Rue said on Tuesday 171 jobs were at risk at its Gateshead plant, more than a year after the banknote and passport printer lost a 400 million pound contract to make UK passports in the traditional blue colour.British union Unite attributed the job cuts to the lost contract, adding the losses were for skilled printing jobs working on the foreign currency contracts, with 100 passport printing jobs due to go in the autumn.De La Rue lost the post-Brexit UK passport contract last..