Ok so today I rescued a Nishiki International from the thrift store and just fell in love with it. But, the serial seems contrary to the information on the serial number data base where it says that serial numbers starting with an 'S' are used on frames prior to 1975. It appears to be a 1988 International but with some extra bits as you can see in the pictures. Is this some special edition racing bike used for an event of some sort? It's absolutely beautiful to me. An estimate of value would be great as well. I saw one comparable selling on ebay for like $700 but...you know how that goes. Check out the pictures and let me know thanks in advance!