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:
Lavezzari hang glider. Lavezzari tests his splitkeel triplesectioned flexiblewingsailed hang glider at Berck Beach France Chronique de l'Aviation ASIN BNE Jacques Legrand and Edouard Chemel Also published in book AviationThe Pioneer Years ISBN Ben MacKworthPraed Lavezzari died more than years ago Public domain PDold Jan Lavezarri