This is a good quality 'universal' foot control pedal made by YDK, model YC-190 which can be used with most machines. This pedal has a particular shaped plug to match the machine, but when new, the pedal typically comes without a cable so that the machine's old cable can be re-used. So, it can either be used as it is, so long as the plug fits your machine, or if your old cable is OK, it can be re-wired with the old cable.
Please see my last photo which shows the shape of the plug end to fit in the machine socket.
Most of the similar ones on ebay are asking over £20, but I am asking only £12 plus postage, which would be £3.