See Leonardi, Claudio, Antonella DeglInnocenti, Barbara Tellini Santoni, Alberto Manodori, and Biblioteca vallicelliana. Maria: vergine madre regina?: le miniature medievali e rinascimentali. [Italy]: cT, Centro Tibaldi, 2000. pp. 420-422
Batarde hand
Illuminations by the Master of the Hours of Charles V
Given to the Vatican Library by Pope Piux IX (r. 1846-1878)
Calendar
Folios: 6v-12r
Language: Latin
Features: Dominical Letters, Golden Numbers, Julien Dates
Colors
High: Red
Normal: Black
Notes:
2-line KL, gold over red or blue
Minimal verses
One side per month
Golden/Dominical on the left side, standard dates in roman numerals on the right in red
Dominical "A" in gold over red or blue, same design as the KL