Thanks for that offer, but I actually think the post is closer to a 27.3! At any rate, I tightened down again on a 27.2mm post and it seems to be holding. I certainly don't want to over tighten that seat binder bolt, so I'll see how it does with my weight on it. Unfortunately, it's been lousy weather, so I haven't had a chance to ride the bike now that I've hung parts on the frameset.

Perhaps I should try the builder's list to see if anyone has heard of this maker.

Neal