Deutsche Reichpost Überweisungsheft (Bank Transfer) booklet. It originally contained 50 sheets but it has been used - only sheet 33 to 50 are left. The only date on it is 1943 (it mentions total for the end of 1943). All of the pages have the date as 194_. The back contains instructions on how to properly fill them out. The booklet measures 9 3/8" by 4 1/8".