I picked up the carpet today. It seems much better. The guy tells me what I’m smelling now is just a wool smell, and it smells the same as other wool carpets he had.
@consolation, I asked him more about the carpet. He said it’s a Tabriz, Shaykh Safie design. He said its a “copy” of something called Ardabil Carpet, which is in a museum in London (I think he said London). He showed me, but I may not have gotten that exactly correct. The colors in my carpet are different, but the pattern, style, whatever are the same I guess.