Christian,  Thank you for the report on the Flower Girl fake.  The
explanation for "Brooke Bond PG Tip" can be found on this web site:
http://www.franklyncards.com/one/tbrook.htm.

Brooke Bond is apparently a well-known British maker of trade cards
[trading cards] and PG Tip is a brand of tea that it sells, in
which its cards are enclosed.  You will see that mentioned about
half way down the history of Brooke Bond given on the site.

Matthew Caulfield