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.
UK marko. pl Znaczek wiatowego Kongresu Esperantystw Cambridge eo Marko de UK en Cambridge Britujo Materialoj de Bjalistoka EsperantoSocieto author Custom marker PDold Uploaded with Esperanto publicity World Esperanto Congress Bridge of Sighs Cambridge
Page 2023 Free-images.com. All images are Public Domain