Very Rare Dutch Blue & White Royal Delft Hand Painted Box with Cover - 1974

The rectangular box decorated in shades of blue with stylized flowers and geo-metric motifs. The cover with handle decorated en suite.
Signed on the bottom in underglaze blue for:
DE PORCELEYNE FLES - ROYAL DELFT
DELFT - HOLLAND  &  CT = 1974
Painter: MVK = M.A.C. van Koppen
Employment dates: 1971 - 1982.
Inside Cover: MCB = Mrs. M.C. van de Bor.
Employment dates: 1970 - 1984.
Literature:
This item is not shown in the book Royal Delft a guide to the Porceleyne Fles by Rick Erickson and not in the model’s overview.

Height:   8,5 cm. (3,3 inches.)
Length: 15,5 cm. (6,1 inches.) 
Width:   11 cm    (4,3 inches.)         
Weight: 483 grams