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:
HorseVaccination.jpeg Vaccinating horse for brain fever Fremont County Idaho MEDIUM negative nitrate size inches Library of Congress Prints Photographs Division LCUSF film nitrate neg loc gov tif uncompressed archival version KiB color level pick black white points cropped and converted to JPEG quality level with the GIMP