That collar is 7yrs old Gem, was Jazz's before Rudie's and has been worn just about constantly, in rivers, hunting, it all. bought it years ago at some game fair? A quick boot polish now and then and it has stayed looking brill. Even survive Rude jumping from the back of a moving quad and denting all the brass work
Someone from here recently asked for photos to make one similar, and said it looked to be saddle/harness...(something like that) leather, which is supposedly good leather?
I thought it was from Black dog trading, but have never seen one like it, and when i bought a different one