OK, so I'm sad and have too much time, but after a quick look through the cats. here goes.......
1991.....Orange/White Clockwork. 'Orange' TT, 'Clockwork' DT either to the front or centred depending on which way the wind was blowing!
1992.....Orange/White Clockwork. 'Clockwork Ctr. TT, 'Orange Ctr. DT. Plain Colours.... Decals to front of tubes
1993-1994... 'Clockwork' Rear TT, 'Orange' Ctr. DT
1995-1996. Introduction of C16-R. Decal placing same as previous years Clockwork.
1997-1998. Reintroduction of Clockwork. Decals Same location as C16-R and 1993 Clockwork.