Octavos definitions

Octavos

1) Book signatures 2) Book sizes 3) Books of size about 6 x 9 in 4) Books with a 6x9-inch size 5) Page sizes for books 6) Some book sizes 7) Some sheet music paper sizes
Found on https://www.crosswordclues.com/clue/octavos

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Octavos

• (pl. ) of Octavo
Found on http://thinkexist.com/dictionary/meaning/octavos/

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