heres what it has before i rebuilt the bike .
LeMans sticker on top tube
centurion sticker on bottom tube
seat tube had a small pink triangle unreadable at top of tube another sticker unreadable and made in japan at bottom of tube .
on back bottom tube small sticker Designed by micheal
the crank is stamped tourney and japan 75.3 s in a circle
rear derailler SUNTOUR V-GT LUXE
front derailler SUNTOUR SL
shift levers SUNTOUR POWER
brakes DIA -COMPE
handle bars SAKAE CUSTON ROAD CHAMPION
ser# U887

hope this can date it thanks T-MAR