The whole of April 1912. Hand-entered orders are counted from every day in that range. Shop orders are counted from the 0 days that have been run — 30 days have not: 1912-04-01, 1912-04-02, 1912-04-03, 1912-04-04, 1912-04-05, 1912-04-06, 1912-04-07, 1912-04-08, 1912-04-09, 1912-04-10, 1912-04-11, 1912-04-12, and 18 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.