After nearly a forty year run as 'The Rover' this fantastically long-runnign title was merged with 'Adventure' on 21st January 1961. This title ran to 142 issues before dropping 'Adventure' from the title and reverting to 'The Rover' on 12th October 1963. It then was merged with 'The Wizard' with issue #148 on 16th November 1963.
'Rover and Wizard' was published from 23rd November 1963 when it again reverted back to 'The Rover' with issue #448 on 16th August 1969. It finally ceased publication on 13th January 1973 with issue #626.
It's amazing to think that it lasted into the 1970s as an all text story paper with no comic strips. In the 1970s it seemed very old fashioned to me when I was reading Lion and Valiant etc.
Note: some PR issues may have no value. Selected issues in FN, VF or VF/NM may not exist in some titles.