International Tourist Trophy automobile circuit race begins in Belfast

Title card: "Seek New Speed Mark - Belfast - An auto race over all Ireland! Famous drivers hit 100 mile an hour pace in 410-mile cross-country classic" / race cars roar out of their starting positions as the International Tourist Trophy race begins in Belfast / Princesses Beatriz and Cristina, daughters of exiled Alfonso XIII of Spain, watch from stands / rear shot race cars speed away