T-Mar, thanks again for all the work you do and help you've given! I'm the proud owner now of TWO Nishikis (Nishikii?) a Cresta, that you've identified as 1983 vintage, and now an early 90's Backroads, probably 92 or 93, as per the color and components, but I cannot for the life of me locate the serial # on this bike... Where am I not looking?

To the OP, can't see the CL ad now, but, mine is teal with pink lettering for the logos... It's a nice ride, enjoy!