Dongo, Berva, Panni by Farago Lazlo
This book has been out of print for 3-4 years.
Hardback. 80 pages. 48 b/w photos plus 44 colour. Published by Veteran Auto of Budapest in 2002. Text is Hungarian, all photos are captioned in English, and there is a 2 page English summary, and a 2 page German summary.
Covers the history of Hungarian mopeds over a 10 year period from early 50s to 1962. Dongo was an engine designed to be mounted on bicycle frames based on the Italian Gilera Mosquito. The Berva moped (1958) and Panni scooter (1959) both had 50cc 2-stroke 2-speed engines. Production of both models stopped in January 1962.
Book available from Bohemia Hobbies