From the Richardson Collection at Harvard's Houghton Library comes MS Richardson 7, a lovely book from the Troyes/Sens area.  The foliate decorations are more complex than many and very well executed, with an unusually accurate calendar.  I was only able to detect 4 errors in copying out of 203 saints.  Pictured is the second half of October with St. Simeon unusually alone, he is almost always listed with St Jude

Harvard's Houghton Library MS Lat 251 is a turn-of-the 15th century Parisian book.  Though the text is Use of Rome, the calendar is thoroughly Parisian.  The text is fragmentary, with both text and illuminations missing, but the calendar is complete, with 260 entries.  F.1r, below, is a good representitive of the decoration scheme, with banded foliage on the outer edge in muted colors.  Also note the unusual missing entries for January 2-4, where the Octaves of Stephen, John and the Innocents would usually be.

Houghton MS Lat 423 was re-transcribed with complete titles (Saint and Sainte vs. s. and se.) and updated in the DB.  f.12v is below, the end of December.  You can see how blotchy and seemingly unfinished the gilded dates are.