Thanks, but I only have the tubes so that will have to come later. The bores are shiny, so it may have been done because of a rough bore.

It also occurred to me that some English makers brand their tubes (a Thomas Bland & Sons comes to mind) so I'm wondering if JAR indicates a specific Birmingham maker. I haven't found a reference yet. That would provide another piece for the Saxton puzzle.

Regards
Ken

I prefer wood to plastic, leather to nylon, waxed cotton to Gore-Tex, and split bamboo to graphite.