Well, since Pete asked, this is what I've got which is pre-'70s:
1947 Raleigh Lenton Sport 1951 Raleigh Lenton Sport 1955 Raleigh Lenton Clubman 1956? Raleigh Super Lenton? 1958 Drysdale track bike 1962 Dawes Realmrider 196? Terrot (Peugeot-built) 1960? mystery French frameset 1962 Armstrong 3-speed (yeah, I know it's not a lightweight)
Chris Beyer
Bloomfield, NJ