We need a bit more information. The OP serials never went that low as they picked up from the Army Special. There were some sent to Britain marked "Official Police .38-200" but AFAIK they did not have their own serial range, so the 11,000 serial is doubly confusing.
Those guns would date to May 1940 through June 1941. They may have been issued to British police or stored in police reserves, though some may have gone to the French resistance.
Jim