Don’t take gaps in time as being a lack of update to the site. I may add new banjos and forget to post. New banjos added:
1954 RB250: https://gibsonbowtie.com/banjo/1954-rb-250-pot-fon-4-2466-18-with-1967-rb-250-neck-fon-057673/
1954 RB150: http://gibsonbowtie.com/banjo/1954-rb-150-fon-6489-43/
1957 RB250: http://gibsonbowtie.com/banjo/1957-rb-250-fon-7-5709-72/
1959 RB150: https://gibsonbowtie.com/banjo/1959-rb-150-fon-9-552-17/
1960 RB250: http://gibsonbowtie.com/banjo/1960-rb-250-fon-0-8405-15/
1960 RB250: http://gibsonbowtie.com/banjo/1960-rb-250-fon-0-8405-41/
1962 RB250: https://gibsonbowtie.com/banjo/1962-rb-250-fon-94035/
1963 RB500: https://www.gbase.com/gear/gibson-rb-250-1967
1964 RB250: http://gibsonbowtie.com/banjo/1964-rb-250-fon-369428/
1964 RB250: http://gibsonbowtie.com/banjo/1961-rb-250-fon-184850/
1968 RB500: http://gibsonbowtie.com/banjo/1968-rb-500-fon-524712/
1969 RB250: http://gibsonbowtie.com/banjo/1969-rb-250-fon-565254/