- Creative Commons license:
- cc-by-sa-3.0-us|Attribution-ShareAlike 4.0 United States
- Public domain or no rights reserved:
- PD-self|I am the creator of this image and hereby release it into the public domain
- PD-author|This file was originally released into the public domain by its creator
- PD-fed|Created by a US federal government employee during official duties
- Multiple licenses:
- dual-ogl-cc-by-sa-4.0-us|OGL and Attribution-ShareAlike 4.0 United States