Rare Set of Two Dutch “Famille Noir” Black Royal Delft Hand Painted Ear Vases - 1991

The two tin glazed earthenware vases with two ears decorated in colours on a black base with flowering plants and a perched bird of paradise.
For the 325th Jubilee of Royal Delft in 1978 The black Delft was new introduced. It was based on the “Famille Noir” that was already made in Delft in the late 17th century. A black base decorated with several colours. the so called: The wondrous Black of Delft.
Both Signed on the bottom in underglaze white for:
DE PORCELEYNE FLES - ROYAL DELFT 
DELFT - HOLLAND  &  DK = 1991
Painter’s initials:RST = Mrs Rina Stadtman 
Employment years: 1978 - 1996.
Literature:
Some black vases are shown in: DELFTWARE - History of a national product De Porceleyne Fles Page 143 nm 213

Height: 22,2 cm.  (8,8 inches.)
Weight: 415 grams