"Fourth Class Postal Accounts Book", two books used by postmaster at Watertown Ohio, form 1558-+, 1) 20 page book (green cover) for the period of July 1 1917 - June 30 1918, 2) 20 page book (tan cover) for the period July 1 1921 - June 30 1922; each with some inserted invoices for assorted stamp/ envelope sales, typical use, Fine and unusual (Image)