Cyclists Touring Club CTC 1915 membership tin button badge

A very scarce original First World War period 'Cyclists' Touring Club 1915 membership economy issue celluloid tin button badge'; cycle wheel bearing the 'CTC' logo in green and gold; the reverse impressed 'Cyclists' Touring Club membership certificate' and official issue number '2028', with manfacturers details to the rim 'Fattorini Bradford'. Good condition, complete with original buttonhole fitting, colours remain bright, some minor cracks to surface. Diameter 23mm.