U.S. Internal.revenue service Office opened to collect new taxes under social security act. Post, Oct. 24, 1936. p. 6 Charles W. Emlet appointed Denver district director of Internal Revenue Service. Post J1 23, 1965 p.16 New regional department to be established in Denver. RMN Ag 23, 1938 p.1 Denver to get tax office. .RMN 0 7, 1938 p.1o