Serial. Printed Ephemera Collection has: 1955:Mar.3, 1955:July 27, 1955:Aug.3, 1955:Aug.9, 1955:Aug.24, 1955:Aug.30, 1955:Sept.12, 1955:Sept.22, 1955:Sept.28, 1955:Oct.14, 1955:Nov.7, 1955:Dec.1, 1955:Dec.13, 1955:Dec.22, 1955:Dec.29, 1956:Jan.5, 1956:Jan.11, 1956:Jan.19, 1956:Jan.25, 1956:Feb.2-1956:Feb.3, 1956:Feb.21, 1956:Mar.6, 1956:Mar.14, 1956:Mar.22, 1956:Mar.29, 1956:Apr.25, 1956:May 3, 1956:June 28, 1956:July 6, 1956:July12, 1956:July 17, 1956:Aug.30, 1956:Sept., 1956:Nov.27, 1958:Oct.22. Irregular. Some issues lack chronology.