This is a very popular set and deservedly so.
It appears in our original British Trade Index part III as
Famous People . Nd. (50)
A. Back in blue, issued 1969.
B. Back in black, issued 1973.
And it just squeezes in to our updated volume, where it is described as
FAMOUS PEOPLE. 1969. Nd. (50). Blue back. Reissued 1973, black back
Now if you look closely at this card the backdrop shows women, marching with their "Votes for Women" banners held high.
There was a wallchart and an album to hold the collection. I know little about the wallchart, but the album is intriguing as it had several versions. The original credits "Berkshire Printing" inside the back cover, and has two different order forms (see Brooke Bond Collectables/FP) - whilst the reprint can be found with or without a price on the cover, and with or without the printer`s name.
A similar picture to the backdrop on this card appears on card 38 of the later, 1983 issued, Brooke Bond set of "Queen Elizabeth I - Queen Elizabeth II", but without Mrs. Pankhurst in the foreground. That text tells us that "In 1918 women over 30 were given the vote ... voting equality with men was established in 1928 just before Mrs. Pankhurst`s death."
This is actually slightly incorrect, because Mrs. Pankhurst died on June the 14th 1928, and the Representation of the People (Equal Franchise) Act 1928 was not given Royal Assent until the 2nd of July 1928 - just after her death.