The whole of May 1912. 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: 1912-05-01, 1912-05-02, 1912-05-03, 1912-05-04, 1912-05-05, 1912-05-06, 1912-05-07, 1912-05-08, 1912-05-09, 1912-05-10, 1912-05-11, 1912-05-12, and 19 more.

One page per customer: what to invoice them for, and what they have earned in delivery credit for hosting collections. Shop orders are paid at the checkout, so only hand-entered orders ticked “Invoiced” appear.