Antique Prayer Book with Lock of Hair

Palm sized antique prayer book or missal with a golden circle of hair tucked inside the front cover. Missing its title page, so I can’t give the exact date, but based on the dated calendar of holy days at the front, it looks like 1901. The book is in good condition overall though it’s clearly been carried and used. The front cover is a little loose from the thickness of the hair inside, though firmly attached. One colored plate inside. Refer to photos for size.