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:
Venus Fort. This is an image of print entitled Venus Fort Erected by the Endeavour's People to secure themselves during the Observation of the Transit of Venus at Otaheite by Sydney Parkinson It was taken from the National Library of Australia website nla gov au html here where it is Plate IV in an online reproduction of Sydney