Kurt Dietrich Losch (1859–1927) studied at the academie of science in Koenigsberg/ Prussia todays Kaliningrad-Russia. His teacher was Heinrich Wolff, later on Georg Ludwig Meyn
User Neumann-Meding - own work photo scan uploaded by user
23.09.2015 photo scan
uploaded image out of the archive "Franz-Neumann-Stiftung" in Stiftung-Königsberg; user is authorized see below