Modern Vespa : vespa gs 150 steering column diameter
Modern Vespa : Vespa GS150 (1959) with LML180 Reed Valve Engine
Modern Vespa : Augsburg 150GS
SECOND BOOK OF THE VESPA ALL 125cc & 150cc MODELS 1959-1963 ALL GS150 MODELS VSI-VS5 1955-1963: Thorpe, J, Clymer, Floyd, VelocePress: 9781588501226: Amazon.com: Books