Shorpy.com, a blog of vintage photographs. This image from 1933 shows a woman deftly gluing alphabet tabs on, what appears to be, a dictionary. We've seen earlier how such tabs represent the cumulative distribution function of the first letter of the words in English. The close-up below show the dictionary to the woman's left. The tabs for letter groups run from Z to A from left to right. For our use, we flip it over allowing the alphabet to run properly from A to Z.
The tabs then show relatively few English words beginning with the last letters of the alphabet.
earlier post. More
details on these cumulative distribution images can be found in my paper available here.