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.
Triangelvg px. sv Triangelvg Bilden renderad av Solkoll User Solkoll on org sv page is was here sv Triangelvg Bilden renderad av sv Solkoll PD Uploaded using de php CommonsHelper or de php PushForCommons Files by User Solkoll from sv Triangular waves
Page 2023 Free-images.com. All images are Public Domain