Found on a March 1949 Olympic Path, believed to be a short run first type metal head badge from late 1948 to mid 1949 only before being replaced with the more familiar embossed badge. 

This head badge found on a 1952 Massed Start is interesting on two counts, 1^st its cast in an aluminium/alloy rather than pressed tin, 2^nd the rings are in yet another colour configuration (yellow top right) the badge is very light and has fine cast detail, perhaps reserved for the very top of the range model such as the Massed Start?

Holdsworth’s version of the CB Works Clapham badge, without the white address panel. Found on a 1961 Super Coureur as a seat tube badge, believed to have been a short run used from 1958 to approximately 1962.

Repro on the seat tube of a 1969 Electron Superfive, Pre-dates the later sticker where Holdsworth replaced the yellow ring with another red one (to save on ink?) believed to have first appeared in 1962 (*nkilgariff) and lasted until the mid 70’s predominantly as a seat tube crest.

Here is an original example of the last Claud Butler “Olympic rings” this was found on a 1987 Cape Wrath MTB built by Falcon. The badge is a version originally created by the previous owner of the brand, Holdsworth. But when the ownership transferred to Marlboro late 1985 in the Midlands, the ‘London’ from the ‘London England’ was dropped. The badge continued after Falcons takeover early 1987 and I believe survived until sometime mid 1988.