
These diaries reproduce a 1688 binding from the Düsseldorf Museum Kunstpalast of 'L’office de la Semaine Sainte', a French liturgy which contained the intricate rules that governed life during Holy Week, determined by the first full moon after the vernal equinox.
The gilt-edged, handtooled design is known as 'fanfare', an intricate decorative technique reserved for books of great importance due to the the level of skill required by the bookbinder.