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.
Keywords from Image Description:
Limes and borders ka. Author Daniel Adams me created this myself and release it to the public domain Limesandborders UTC Limesandborders Transferred from org en transferred to Commons by User Shashenka using de php CommonsHelper Original uploader was PocklingtonDan at org en derivative work Jaba Jaba Limesandborders