manuscript notation on April 21, 1845 folded letter to New York City, also endorsed "Will Mr. Johnson please forward this at once", very fine, one of three reported Phillips & Co. covers, Phillips & Co. was founded by Daniel Phillips, Jr. of Hartford as a package express in 1844 and carried a small volume of mail until the postal monopoly in 1845, the company worked in conjunction with other expresses including Adams' Express and Beecher's Express of New Haven until its acquisition by Adams' in 1848