sentences:  In 1886 Congress revised Special Delivery service to all U.S. post offices.Special Delivery service was in operation from 1885 to 1997 whereby the letter would be dispatched immediately and directly from the receiving post office to the recipient rather than being put in mail for distribution on the regular delivery route.In 1885 Congress enacted the use of ""a special stamp of the face valuation of ten cents ... [that] when attached to a letter, in addition to the lawful postage thereon ... shall be regarded as entitling such letter to immediate delivery.""