beer...
I got no idea what you're looking for, and at this point I'm going to have to echo Pete's response ("What would be the good in that??). I've been marking (collaring, eartagging) wolves for 37 years for various outfits and in various places around the world, and putting collars on other predators (mink and marten to grizzlies and tigers) and following them around for 47 years. What info are you looking for?

Jack

The wifes older brother Amil in Buckland used to decorate his walls with Wolf collers, 20+ easily back then....Might still, but I havent visted in years, and he still hunts.

I had a collerd one double lung'd in the mid 90's, still alive and lips back, teeth out, his blood almost out, I was amazed how he stopped, snarled low and unflinchingly held himself when the back of my ax came down. He knew the Jig was up, and took it better than most Men.

How much black tape does a normal coller have?

lol

I be caught 13 over the years, all released with a collar. My friend shot one I released a year later

A lot less now than in the 90’s.