Mason joined Burslem Port Vale in November 1892. He made his debut in a 5–2 home defeat to Newton Heath on 24 December 1894, becoming a regular from March 1895. In 1896 he was reported to be performing 'his usual trick act of shooting at the winding gear of the adjacent colliery or at the clock in the Cobridge Church tower'. He lost his first team place in December 1896, despite this ability. He was suspended by the club in February 1897 for 'offensive conduct' and only made one further appearance, in October 1897. Despite this he actually went on to become a referee after being released in 1898.