OL

OL is a small French postal marking meaning origine locale. It was used by mail carriers on mail handed to them while on their route, c.1868 to c.1900. There are two styles, one with a dotted circle, one solid. These would be struck on or near the stamp(s) on a cover, and would be delivered en route if possible or carried to the post office upon the carrier's return and also cancelled there.  File:Mona 10c sm medall.webp|on 1901 Monaco stamp. The Monaco post office also treated mail similarly. 