Featherweights came with a cardboard piece in the bottom of the case, with the corners cut out for the rubber feet. This way the middle of the machine sets on the cardboard and not the rubber feet. Most of time the cardboard is taken out and the feet go flat. If the cardboard is left in and not changed is gets oily and smells very bad. Yours being complete may still have this piece of cardboard in and making the smell. I have only received one machine with the original cardboard in the bottom and it was nasty smelling. It was replaced and then Charlee’s coffee idea was used and it worked great. Just as an added note. I cover this piece of corrugated cardboard with black felt for the black look and to place the machine on a soft cushion.