Q: Hello – I have a copy of John Bunyans book the pilgrims progress its in format 4 – 5 good condition, do you know when it was printed?

A: It was published between 1923-1933. The date can be narrowed down by studying the ads in the back of the book.

A review on dating this format is at http://henryaltemus.com/series/series202F4.htm

Copies are still in circulation today as a used book.