Veterinary Ambulance York Market Sheep and Calf Ambulance. This vehicle was used at York .. 22 December 2019 ukemergency York MarketSheep and Calf Ambulance. This vehicle was used at York Market to carry sick or lame sheep and calves. It was given to the market by the RSPCA in 1914 and was used when the market was held beside the city walls. Share Follow