Hmmm. Looks like Horace Bates was revived by Ron Cooper, of Gillots, but that the E.G. Bates business continued until 2002 without needing revival. These are certainly, then, more recent products of the E.G. Bates business, which fits this sellers timeline. It looks like $800-1000 is more of a relevant price, but there's a fair chance I can buy these a long way under that. Might be investment time. Thanks for the useful steer number6.

Neither of these bikes looks like it's cantiflex tubing, nor do they have the diadrant forks. Nevertheless, nice handbuilt British bikes, in excellent condition. If I can get them as cheap as I hope, I'll be able to keep one, and sell the other for considerably more than I pay for both.