Originally Posted by
juvela
-----
You mention purchasing the bicycle used about 1970.
Am thinking that it looks like it might have been manufactured during the mid-1960's.
This would make it a Holdsworthy product.
In case you are interested there is a serial number database here for Claud Butler, Freddie Grubb and Holdsworth badged cycles:
Frame Serial Numbers
You may wish explore it to figure out where your bicycle fits in...
-----
This is awesome! I'll need to check my Claud Italia against this. I think it's an '84, but this will let me know for sure.