#1 2005 OR 2002 as a best guess ? ... odd serial # format .. special order ? #2 1998 ... odd that it doesn't have a Limited model waterslide .............. possibly not used on every N-LP until a few years later ? #3 1995 #4 1995 #5 1992 #6 1995 #7 2000 #8 1999 #9 2001 I checked about 20 - 25 Navs for each serial # format and can't see any anomalies such as Ltd waterslides prior to 1996-97, white rear plastics outside of the range they were used in, or day of the month numbers higher than 30-31, month of the year higher than 12 in the 1990's 8 digit numeric format, week of the year higher than 52 or year higher than 15 in the 2000+ K or T prefix formats. Based only only Villager's three 1995 examples so far, there would have been a brief TRC change to a flat bottomed 1 screw variety in the mid 1990s before ESP returned back to the earlier 90's bell bottom style TRC again in the later 90's. I did find another Tanaka T prefix example besides Villager's, similar in format to Kiso K prefix examples.