Manufactured by Gelderse Motoren Fabriek, Rijssen. 1951-1959
Models include:
1951 GMF Boy (Gemef)
1952 GMF Boy Luxe
1954 Boy Ketting-Boy
1955 Boy Super-Automatic
1956 Boy Zündapp Double
1957 Boy Zündapp
Most were fitted with a horizontal BOY two-stroke engine of 45cc, 38x40mm B/S.
Source: mop-ed.se
