unknown frame

can anyone identify this frame?
all i know is that it is an audax type frame, which was fitted with mafac centre pull brakes and stronglite crank.
other details
seat tube measures 24.75" (630mm), from top to centre of the bottom bracket.
frame no. AM53073
forks 1" steerer
reynolds 531 tubing
pictures can be found @ http://members.lycos.co.uk/brizboy1/unknown%20cycle/
all i know is that it is an audax type frame, which was fitted with mafac centre pull brakes and stronglite crank.
other details
seat tube measures 24.75" (630mm), from top to centre of the bottom bracket.
frame no. AM53073
forks 1" steerer
reynolds 531 tubing
pictures can be found @ http://members.lycos.co.uk/brizboy1/unknown%20cycle/
0
Posts
going by the small cutout i think it might be a nishiki.
http://www.bikeforums.net/forumdisplay.php?f=181