Current Projects chat and miscellany

@KC, that frame is the same as in the pictures, which says the pic "was shot at the leicester track, the home of the 1970 world chamionships"
so i'm guessing the pic was taken after that date. which puts it in the 70's

could be wrong tho..........

sussed it out now it starts with f but on further reading it is late 1960's

Frame numbers.

Early frame numbers were prefixed with a letter. They were stamped on the left side rear dropout. The following is a list compiled from various sources and is probably not 100% accurate. If anyone can provide more accurate information, it would be very welcome.
A 1939F 1957-58L 1963B 1940-48G 1959M 1964C 1948-52H 1960S 1965D 1953-54J 1961T 1966E 1955-56K 1962Y 1967
(This series of letters needs revision. With more frames identified it is clear that in the 1950's a single prefix letter was used for several years. In the 1960's, as production increased to meet demand, more than one letter was used per year. For example, E seems to be more relevant to 1957-1958. I need to reinterpret the data I have to try and clarify this.)
From 1968 to 1972 two numbering systems were used. The majority of models had simple numbers, up to seven digits, sometimes with leading zeros, stamped on the left rear dropout, at the top of the seat tube to the rear or under the bottom bracket. I do not have sufficient data to analyse these numbers and relate them to specific years.
Some models, the Professional and Giro d'Italia models have been identified, had a letter and numbers. I am aware of bikes with D, F and G. My initial view is that D was 1968-69, E was 1969-70, F was 1970-71 and G was 1971-72, when the numbers changed to the new scheme.