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:
Oil field Humble Texas. en Oil field embossed postcard Humble Texas The University of Houston Digital Library lib uh edu Postal Card Novelty Co Custom marker This image is in the public domain and may be used freely If publishing in print electronically or on website please use the citation Courtesy of Special Collections