It appears to be a 1969 Competition (with a number of component substitutions):
http://www.sheldonbrown.com/
Charlie Young
Honey Brook, Pennsylvania USA
Damien noted:
> Chrome nervex-style lugs on a Competition? The first aooearance of the
> Comp that I can find is the Mark II the 1973 catalogue. Perhaps the Comp
> was offered in England earlier, and with chrome lugs? (since "Mark II"
> would logically indicate a previous model existed .)
>
> http://philadelphia.craigslist.org/
>
> Damien Roohr
> Canton, CT
> 1978 Comp GS under restoration!