Dee’s Angelic revelations included 48 tables out of 49…

[Dee’s Angelic revelations included 48 tables out of 49, the 49th being reserved. Separately, the Volnich manuscript has a possible key on the 49th-numbered sheet. ]

A quire of paper is a measure of paper quantity. The usual meaning is 25 sheets of the same size and quality: 120 of a ream of 500 sheets. Quires of 25 sheets are often used for machine-made paper, while quires of 24 sheets are often used for handmade or specialised paper of 480-sheet reams. (As an old UK and US measure, in some sources, a quire was originally 24 sheets.) Quires of 15, 18 or 20 sheets have also been used, depending on the type of paper.

Pasted from <https://en.wikipedia.org/wiki/Units_of_paper_quantity#Quire>

The number of sheets in a ream has varied locally over the centuries, often according to the size and type of paper being sold. Reams of 500 sheets (20 quires of 25 sheets) were known in England in c.1594; in 1706 a ream was defined as 20 quires, either 24 or 25 sheets to the quire. In 18th- and 19th-century Europe, the size of the ream varied widely. In Lombardy a ream of music paper was 450 or 480 sheets; in Britain, Holland and Germany a ream of 480 sheets was common; in the Veneto it was more frequently 500. Some paper manufacturers counted 546 sheets (21 quires of 26 sheets). J.S. Bach’s manuscript paper at Weimar was ordered by the ream of 480 sheets. In 1840, a ream in Lisbon was 17 quires and 3 sheets = 428 sheets, and a double ream was 18 quires and 2 sheets = 434 sheets; and in Bremen, blotting or packing paper was sold in reams of 300 (20 quires of 15 sheets). A mid-19th century Milanese-Italian dictionary has an example for a risma (ream) as being either 450 or 480 sheets.

Pasted from <https://en.wikipedia.org/wiki/Units_of_paper_quantity#Quire>

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