1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
I don't know anything about the bike specifically, but I'm guessing it's a department store bike. My reason for thinking this is that the rear reflector was installed upside down, which means someone bought it in a box and assembled it themselves. I know, pretty weak logic. Did you post it in the folding bikes forum? If not, try it.
I did find out that this bike is a 1965, it has the original tan leather seat, ( i put a seat cover on it to protect it) the newer Amica's have a solid tube book rack instead of the danty chrome one that this bike has. The chain guard is also soild on the older Amica's. The newer ones have a partial top guard. That's about all I've found out.