Some of the first back of the book type items I started collecting were the tete-beche stamps. These are from sheets intended to be used to make booklets. Normally, a sheet of tete-beche stamps is broken up into panes for the booklets, but some of the sheets were sold to the public. This is example is from the second coins issue (1949). Booklets 4-6 were made using these stamps (booklets 1-3 were from the Doar Ivri stamps).