U.S. Coast and Geodetic Survey, R.S. Patton, director. "Soundings in feet at mean low water." "Dec. 1933." "33-12/20"--Lower left margin. "No. 1288"--Upper left margin. "Joins chart 1287"--Upper margin. Includes source diagram, table of channel depths, and tidal information. Also available as a JPEG image through the Texas State Library & Archives Commission Web site.