I have a question regarding Printing History...I have come across a book that has a string of 10 numbers below the Printing History and this string of numbers is the same in several books I am working on. It does not have a decimal within it or it does not have any letters.
13 14 15 16 0940 19 18 17 16
I'm wondering since it is in several books that are a part of a series if it may be a series identifier. If so, is it included in the Printing History? My guess is no but would like to know so sure.