Models A's have fastback seatstays and obvious handwork/ lug thinning.
So this auction was a Limited.
I didn't have a clue, either, until this auction, but the CR list provided me with the ID. One fellow sent me some pictures of his A frame, but unfortunately I didn't save the pics on my computer & that email is gone.
__________________
72 Frejus, Holdsworth Record & special CNC / 74 Italvega NR (for sale) / c80 ?French? / 82 Raleigh Intl MkII / 83 Trek 620 / 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 10 Vassago Fisticuff