This enshrined hand, and another, said to be that of a later miniatore of the same Monastery, Don Lorenzo, still exist in the Sacristy of the church of Santa Maria degli Angeli.
These magnificent miniatures were sold with the rest of the Hailstone Collection in 1891; one of them, in the possession of the present writer, is a magnificent initial O, measuring eight by nine inches, enclosing a very beautiful seated figure of Saint Stephen in a violet dalmatic with richly decorated gold apparels.
See Vasari, Milanesi Ed. Vol. II. p. 15. Vasari also mentions a monk of the same monastery named Don Jacopo, a contemporary of Don Silvestro, who illuminated twenty large choir-books of extraordinary beauty.
He appears to have abstained from purchasing these choir-books because they were of the special Camaldolese Use, and could not therefore be used in the Vatican Basilica.
Fra Angelico's works were executed throughout the first half of the fifteenth century. Vasari mentions some magnificent manuscripts illuminated by him for the Cathedral of Florence, but they are not now known to exist.