Featherweight cases often smell and you can read all kinds of information about how to handle this. The glue that was used to adhere the lining to the case often breaks down over time and the oil drip felt liner in the botton of the machine may also harbour bad smells. Leaving it out in the sunshine, packing it with crumpled newspaper, putting in activated charcoal, kitty litter or baking soda to absorb the odour and dryer sheets all help to neutralize the smell. I keep a bar of Irish Spring soap (strong smelling deordorant soap)in mine at all times. If the case is ratty and you can't get the smell out you can buy a reproduction case or a soft sided new case to fit your machine and the felt in the bottom of the machine itself can be replaced. Happy stitching on your new machine.