Shell Oil Company motor and aircraft petrol advertising badge by Gaunt

A scarce original circa 1950's period 'Shell Oil Company promotional badge'; gilded brass example in the form of a shell, black enamel lined edges, bold red enamell title to the centre; the reverse with maker's details 'J.R.Gaunt London'. Good condition, complete with original buttonhole lapel fittings, no damage to the enamel, wear to gilt finish. Height 28mm.