6 black dessert plates Old and Johnston Bordeaux 19th century astrology

6 old black and white dessert plates by jules vieillard and david johnston bordeaux. 19th century. In good general condition. Please note that these are old plates, some defects are possible. 5 marked on the back q6 and an m6, signed d. Johnston grès, j. Vieillard and cie porcelain, bordeaux pottery. The marli presents a succession of musical angels and small black squares. Central scenes all different on the same theme "astrology": march and ram, june and crayfish, july and lion, september and scale, november and sagitairre, december and capricorn. Diameter 20 cm.