Very rare Low E natural professional Selmer bass clarinet. Size-wise feels like an alto clarinet but sounds like a bass! Super dull low end even though it's missing the extra bit of tune. And speaks great in the middle and high registers. This was just professionally serviced with a full COA where all the silver was iltrasonically washed and buffed, many pads were replaced, keys oiled, leaks sealed, and some corks replaced. No damage and in great shape. Plays wonderfully ! Comes with mouthpiece and original case.