What's your opinion on the paint? The decals obviously aren't origional, are the decals on these normally under lacquer or on top and can be removed? I'm wondering if the paint is origional, what do you think of the marks at the bottom of the seattube that look like it could have been a tubing sticker?
It looks like a respray. I think if it was original, i.e., if Paul Brodie had painted it, it would be a bit more flamboyant. The shape of the disappeared sticker is different from the Tange Prestige Concept sticker, and also I believe Kona always placed the Concept sticker further up the seat tube.
It could be that you can read the serial number so clearly because it was painted rather than powdercoated, as paint is thinner. If it was repainted in the early 90s, it would most likely have been painted, as powder coating was less widely available for bike back then, especially with the additional decoration in this case. It might look a lot better if it was clean actually.