
Here's a pic of the trans and battery box on my G. the seat is kinda in the way.. however look at my black arrow and circle.. there is where the SN will be in relation to the gear shift.
here is the SN range/dates:
Year Starting Serial Number 1948 6 1949 10961 1950 23180 1951 24006 1952 25269 1953 26497 1954 28036 1955 29036
hope that helps.
Soundguy