So in my SB the 110 was issue in 1938 in 1 color black and red with the price of a rose red and 2 perforations (1938 - 1950 )
In your SB the 110 is 1938 in rose-red and black Line Perf 11.9 (1938)
..................110a is also 1938 and dull red and Black Both Line Perf 11.9 ( 1938) or... Comb Perf 11.9 x 11.75 (1950)
In my Michel 101a rose-red and black is 1938
............101b dullred and black is 1940
So futher enquieries is requiered. Can email the Berbuda collectors, group, but it's too wasy, I want to get the book I ordered first
How boy, for a small country, they do have a lot of book
http://www.bermudastamps.co.uk/books/