The whole of April 1956. 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: 1956-04-01, 1956-04-02, 1956-04-03, 1956-04-04, 1956-04-05, 1956-04-06, 1956-04-07, 1956-04-08, 1956-04-09, 1956-04-10, 1956-04-11, 1956-04-12, 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.