Does it have the front cover on it? How many are in the booklet? There were several (or more) series of these types of detachable postcard booklets printed back in the day. Unfortunately, they do not command a high price even though they are military related and going on a 100 years old. Regardless, they are worth the buck you paid for them, maybe $5 (or a little more) depending on condition. I think they printed many of them, so supply is sort of plentiful so to speak. Or maybe people just don't care about old French postcards unless they are depicting some of those beautiful hand tinted nudes they are so famous for, lol. I actually collect postcards (yeah, I know, I collect everything) and have only sold 1 out of the thousands I have.