Italy, Lombardy [Santa Maria di Monte Oliveto di Baggio near Milan?], c. 1439-1447, Olivetan Master (Frater Jeronimus?), detail from f. 9v, Monks singing the Office. Decorated Initial A[sperges me…]. Gradual, (Use of the Olivetan Benedictines), in Latin, illuminated manuscript on parchment, 23 1/2 x 17 1/8 in. (595 x 435 mm). Photo courtesy Les Enluminures.

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