Vintage Dutch Blue & White Royal Delft Hand Painted Small Vase Pion Square - 1951

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  &  BV  =  1951
Painter’s initials: HB  =  P.H. Beuzenberg    
Employment dates:       1949 - 1954 
Literature:
Shown  in Rick Erickson - Royal Delft  Page 75   - Fig. 07-44 Model Pion Vierkant (square)

Height:11,5 cm.  (4,5 inches.)
Weight: 97 grams.