Pages from a 1710 school ledger by Philadelphian Grace Hoopes. Her penmanship and flourishes are remarkable! And check out that almost-too-quaint-to-be-true calculation of how many barley corns are in a mile. The book is also a great example of paper corrosion caused by unstable iron gall ink, as you can clearly see in the first image (the whole book looks pretty water-stained too).

From the HSP schoolbook collection [1066].