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:
Junkers Ju Inverted Wings. Junkers Ju with it's inverted gull wings Transferred from org en transferred to Commons by User Matt using de php CommonsHelper br Original text created this work entirely by myself br Original text September Dapi talk Original uploader was Dapi at org en Later version were uploaded by Hohum