ALMANACH. - Calendrier perpétuel rendu sensible, et mis à la - Lot 37

ALMANACH. - Calendrier perpétuel rendu sensible, et mis à la portée de tout le monde: ou Nouveau et vrai calendrier perpétuel. By M. G. S. H. Paris, De l'Imprimerie de Gueffier, 1774. Small in-12, red morocco, triple gilt fillet, bold and lean, coat of arms in center, ornate smooth spine, interior roulette, gilt edges (period binding). A curious perpetual calendar, suitable for rendering an exact & faithful account of all the operations one would wish to perform from the beginning of the Christian Era, to the end of the world. It comprises 6 folding tables, including a table for finding, all at once & without any calculation, the Golden Number that belongs to any Year from the birth of Jesus Christ to the present day, an out-of-text plate containing 3 volvelles, a small folded printed leaf used for movable feasts (p. 96) and 12 other small printed butterflies placed in windows in the corresponding leaves. A copy bearing the coat of arms of Madame Adélaïde (1732-1800), one of King Louis XV's daughters. Butterfly with essential errors to be corrected glued to verso of title. Without the blue silk bookmarks holding the 12 printed butterflies.