The series was monthly from 1949 until #35 (August 1952), with a cover price of 6d (#1 to #24), 7d (#25 to #31) or 8d (from #32). They were then published on a fortnightly basis until #104 (July 1955). From #105 onward the comics were published every week -- the cover price increased to 10d by the mid#300s. The comics were one shilling from issue #377 onwards. For some reason issues #475 to #488 (1962/63) carried a "published monthly" tag, before resuming a weekly schedule from #489 onwards. The last issue of the series was #556 in 1965.