I have had several of those 'dors. I like to refinish and modernize them. Seems like you have a clay humidifier. I think these were used in the 60s and before. The interior description makes me think 60s too. Earlier ones had glass lining. If the wood is good, they can clean up nicely. Typically though, the cedar is very musty smelling. I would think this might communicate to the humidifying element. I would be concerned that 'dor would make your smokes smell and taste bad. What's a little cedar taste compared to mold?