Schröder, Kurt2011-08-242019-05-302011-08-242019-05-301900ÜAMF 171:29http://hdl.handle.net/10062/18378dephotographsslidesSchmidt, Bernhardoptikudastronoomidslaididfotodportreefotodportreed1900-ndad1910-ndad1920-ndad20. saj. 1. poolImage