Re: old bike ID?
I am far from an authority on old bikes but I remember seeing the heart shaped sprocket holes on a couple of classics that I looked at but couldn't afford.
Wait for a reply from either Silver Bear or Bairdco. They both have extensive knowledge about the older bikes. Congratulations on your fiind. They sound like good foundations for a motorized bicycle.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"