There are many remedies online for the stink of machine and its case. Some of the smell is from the old animal hide/hoof glues getting moldy, and in extreme cases where nothing else has worked using a clear craft spray to seal the case inside may be the only remedy short of peeling off the covering and bleaching the wood. A stinky machine can be easily cleaned and the felt in the drip pan replaced. Just don't put it back into the stinky case til you are sure it is fresh as a daisy.