Richard Hermann Wunderlich,(1868-1943), not to be confunded with C. A. Wunderlich of Siebebrunn, was a well known flute maker in Berlin  pre-World War I. Richard Hermann Wunderlich flutes are rare and highly looked  as hand-crafted instruments. This flute is in good condition, it plays on old pads but needs a general revision. The flute weights 554 g and A is 435. Closed G diesis. Case original but worn. Ask for more pictures and info.