No, those are 3 hand cast pewter buttons on the inside flap. That bag was sort of a re-make of one a friend of mine got somewhere. It had a leather strap, and a modern roller buckle. It originally was not lined. He wanted it sort of customized to fit his hunting needs. I started to just use it as a pattern and make a new one, but he really liked the color. I checked it and it was oak-tanned leather (not chrome) so I just re-made it. I took it apart and re-sewed it with a saddle stitch (with 2-needles) by hand with my linen thread, and added a folded strip of leather in each seam for wear protection. The real light brown leather in the flap is a pocket. The 3 silver discs are some handcast pewter buttons used to hold the pocket closed when you open the flap. (Another idea I once saw on an old pouch I examined in a private collection in Tennessee - have no idea of it's age, but it had been there for a while) If you look close, there is a strip of deer skin that runs across the inside of the flap on the inside. It has 3 buttonholes in it, reinforced with linen thread, that the buttons button into. The "pinked" edging on the flap was added to hold the body of the pocket to the edge of the flap. I "pinked" it to match edging I had noted on several ole bags I have examined in the past. The strap was made out of hemp webbing that I dyed in my plastic bucket of boiled walnut hulls, and the buckle was made out of an old musket sling buckle that I added a steel tongue to. I added the ticking liner too. I then told him to go out and get some age and wear on it. Well, he removed the strap and put a wool one on it, and kept the buckle and the billets, and be darned if he didn't throw it in on a trade to a place that sells lots of hand-made guns (it has 4 words in the name.) I saw it for sale there for more $$$ that I'd ever have the nerve to ask anybody. They said "unknown maker" . Well, I called them (and even sent them a couple of these photos as proof,) and told them I knew my name pretty well, and would they like a few more similar ones!! They never responded. Oh well. The second one is 100% all mine. I dye all my own leather and soften it back down. The strap was made by some folks our church helps in the former Northern European Soviet Bloc. They raise the sheep, spin, dye (Veg.dyes), and weave the straps. The lining is 100% linen (Reproduction) that was printed on a 140 year copper roll in England. The fabric was originally made for draperies and upholstery. It just appealed to me. Buckle was bought, rings I bent up in my shop.