Public domain photos

The image shows a postage stamp with a portrait of John Muir, a conservationist, on it. The stamp is in mint never hinged (MNH) condition and is valued at $5.00.

The image shows a postage stamp with a portrait of John Muir, a conservationist, on it. The stamp is in mint never hinged (MNH) condition and is valued at $5.00.Open in library