Holy Mass or wedding Mass book. Composed of vellum leaves mounted on tabs, comprising 24 polychrome gouache pages enhanced with gold miniatures, lettering and scrolls in the margins, with handwritten text in the style of hour books. Hardback binding enclosed in another leather binding with embossed motif. Color decoration on the front cover of poppy flowers, numbered "JK" in gilt, and on the spine of fleur-de-lys in bud or in full bloom around a frame. Dedicated for a wedding in 1901, then given as a gift in 1944. Early 20th century. 19.5 x 14.5 cm. Case.