My wife and I were wandering around the flea market Saturday and naturally I had my eye out to feed my new addictions, shaving related items and fountain pens. I had a couple of good finds. First for $5 I picked up what looks to me to be an unused 3 piece Tech with a black plastic handle. It's date code is W1. Next I found a gold new model. It has a box (assuming the box goes with it) but unfortunately it's missing the top insert but is otherwise in decent shape. The razor is definately used and shows wear to the top plate and a little to the handle end. Still for a whopping $1.50 I think I did ok on it. I want to make sure I don't damage the gold razor so is there anything I should avoid doing when I clean it??