The M90 was Manet's first offering and was available from 1947 to 1951. Manet were a Czechoslovakian firm and continued until 1967 when they were taken over by Jawa. It looks like this brochure was produced in Czechoslovakia as a promotion to encourage export. As far as I know they never officially came in to the UK.
|Jawa M90 brochure page 2.|