The whole of August 1971. Hand-entered orders are counted from every day in that range. Shop orders are counted from the 0 days that have been run — 31 days have not: 1971-08-01, 1971-08-02, 1971-08-03, 1971-08-04, 1971-08-05, 1971-08-06, 1971-08-07, 1971-08-08, 1971-08-09, 1971-08-10, 1971-08-11, 1971-08-12, and 19 more.