my jacket smells funny

I noticed a smell today, and at first I couldn't figure out where it was coming from. Smelled like old water faucet - you know that metallic, cold, slightly sweet smell? not a bad smell at all, but sort of otherwise incongruous with my surroundings. I sniffed a bunch of things until I located the smell in the woolen pea coat I wore to work today. Weird - it must be the remains of some perfume I have worn recently, but I can't put a name to it. Maybe this is the last little breath of Mitsuoko?