Dutch Blue & White Royal Delft Hand Painted Small Vase Pion Square - 1975

The small square tin glazed earthenware vase decorated in shades of blue with stylized flowering plants.
Signed on the bottom in underglaze blue for:
DE PORCELEYNE FLES - ROYAL DELFT
DELFT - HOLLAND  &  CU  =  1975
Painter’s initials MTR  = Mrs. J. van Trigt.
Literature:
Shown  in Rick Erickson - Royal Delft  Page 75  - Fig.07-44 Model Pion Vierkant (square)

Height: 11,5 cm.  (4,5 inches.)
Weight: 109 grams.