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.
VEB Kamenzer Spielwaren Optik montage experiment. de VEB Kamenzer Spielwaren Optik montage experiment DDRMuseum Pirna Verffentlicht mit Genehmigung der Museumsleitung own Stefan Khn cczero Uploaded with Photographs by User Stefan Khn Educational toys GDR Museum in Pirna
Page 2023 Free-images.com. All images are Public Domain