Early JMI Vox catalogue page most likely from late 1962; the guitars and basses shown here were all produced in the UK for the UK market, although some were exported in small numbers over successive years. In fact none of these instruments, with the possible exception of the Vox Ace and Bassmaster were produced in large numbers; the Escort, Soundcaster and Symphonic bass were three of Vox's higher end models, and were competing in price terms with the then much more desireable American imports, on which they were modelled.
The Escort was discontinued shortly after the production of this catalogue, certainly by the middle of 1963, but the other models stayed in production at Vox's Dartford plant as late as 1966, and possibly into 1967. The Soundcaster and Ace did, however, undergo redesigns probably early in 1963, benefitting from new pickups (Vox V2 type, as opposed to the old metal-covered V1 pickups shown here). The Ace got a new body design, and a new neck, whilst the Soundcaster got a new tremolo unit.
Note the tortoiseshell scratchplate on the Escort - certainly an unusual feature for any UK-produced Vox guitar.