80th Anniversary Celebration . Mark Ormsby, Ka80thy Ludwig, and Sarah Rai80thel conduct XRF analysis of a forged date on a Lincoln Pardon; Location: Archives Conservation Testing Lab, College Park, MD;

---

Size: 1224px × 1632px
Photo credit: © AB Historic / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archival, archive, art, artwork, classic, classical, collection, historic, historical, history, image, photo, picture, print, reference, staff, vintage, working