I have an old vintage Elkahart alto sax. The bell of the sax has a big Elk. Under the Elk in a heart it says THE ELKHART Band-Inst-Co ELKHART IND. It appears to have mother of pearl keys and a brushed silver finish. It has an old musty smell to it. It needs to be repadded and also needs some work on the keys. It has a dent in the bell as well. My question is How much is the saxophone worth and what brand is it?