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:
Washington Issuec. George Washington issue of lilac gray Post Office hires scan of US Postage stamp from personal collection National Bank Note Company image scan by Gwillhickers from personal collection thumb left Issue of WashingtonIssuec Image sources American History US postage stamps American Revolutionary Wa PDUSGov Stamps