Just picked up a mid 90's Concorde Prestige. It has me scratching my head; TIG welded Tange Prestige tubing with Ritchey vertical dropouts and internal cable routing on the toptube. I believe it has full original spec (excluding the pedals and bar tape). Full Shimano 600 Tricolor groupset, Mavic rims, Cinelli stem and bars, and rather interestingly Ritchey saddle, seatpost, and tires.

Can't find much information about Concorde in the mid 90's. I understand their earlier frames were constructed in Europe, and later their lower tier offerings came out of Taiwan. But this is unmistakably built for racing. The Tange-Ritchey connection is particularly curious but I haven't found any similarities between this frame and the earlier Ritchey Road frames, other than the tubing.

Oh, I should mention that it rides beautifully. (Too new to post photo or link to photo, unfortunately. Uploaded images to my album though for those who are curious)