This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Ludwig Tobler . de Schweizer Sprachwissenschafter und Volkskundler Redaktor am Schweizerischen Idiotikon in Zrich um Archiv des Schweizerischen Idiotikons Zrich author Custom marker PDold Uploaded with portraits of men Germanists from Switzerland
Page 2023 Free-images.com. All images are Public Domain