As discussed initially through a previous exchange thread and not wanting to hijack, I have taken a few shots of my 2 JB serial frames to show the variations between the polished frames as time has gone on. I do have a 3rd and will check this one when I get round to it. The earlier the frame it appears, is duller in appearance and it's finish is definitely more unrefined. The surface appears hammered in comparison to a newer frame, and like the early non her stem frames , shows a pitted surface in certain areas. They also appear to be slightly heavier than the newer frames, apparently due to the change in density as pointed out by @CarGuy - I was not aware of this so thank you for that. Any other input or info / opinions out there?
Serials are JB012239 and JB034544
Serials are JB012239 and JB034544