Looking for some opinions as to why the chassis of this radio looks the way it does. Wondering if it’s just patina because someone told me that it looks like it was either in a flood or in a fire. I don’t know how that could be unless the covers and face plates were removed from the radio before it was in a flood or fire. The radio functions very well and the exterior is nearly mint! Also, the underside of the chassis is shiny. I was thinking maybe it’s just the way it is from years of use and heat? Thanks for any opinions!