The skived and interlaid 'welt stack' of that still-in-progress, frozen-in-time Brill by Rabensburg. Image is Neale's, notations are mine:
neale construction (3).jpg
Previously the eagle-eyed Editor (of The Book) had spotted the separation of the layers in the welt stack, in completed 'late' Brills. I disassembled one I received earlier this year and he was, of course, right.
The main welt section being laminated from skived layers we can understand readily enough; Tom Threepersons' own (I have deduced Egland of Douglas AZ) holster has two very thick layers at the open end with one skived of them skived so that the double layer reduces smoothly back to just one along the barrel and then across the muzzle. But the 'late' Brills have three just at the muzzle. Yet not for the length of the barrel itself, even on the auto pistol versions.