So yes. Thank you for the reply.
I asked Chris over at TVWB and he said that the flat is gone from the 26 so he wouldn't be surprised if it is stamped these days.
We hunted around for the original tooling for that lid and then it dawned on them.. Oh yeah.. We never stamped them! They dug out the old spinning form and had to polish it up before sending it out for initial runs.
While I can see having more headroom with the stamped dome and having better production, I have a soft spot for the flat tops.