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:
Mark torpedo under wing of PBY in .jpeg Mk XIII torpedo without propellers installed on one of the underwing racks of Navy Consolidated PBY Catalina patrol bomber September Note the Vshaped zipper closure to the aileron control inspection access opening with associated identification text in the upper left center Official Navy