New York: Seabury & Johnson, circa 1900. Envelope or Cover. Three all-over chromolithographic Seabury & Johnson advertising covers, all are franked with 2-cent Washington stamps (Scott #279B) tied by New York machine cancellations dated between 1898 and 1901. Faint illustrations of the S&J factory are in the address field of... More about The pinnacle of postal advertising: three end-of-the-19th Century Seabury & Johnson...