Squibb delft Rx miniature mortar and pestle

This is an adorable small Squibb marked Mortar base and pestle. Marked "Delfts Holland SQUIBB" done in Blue and White Delfts style and Labeled RX on one side and floral on the other. Tiny size may be a salesmans sample or Pharmacy advertising piece. Measures approx. 2" tall by approx. 2 1/4" diameter. In wonderful condition, but some crazing. A very cute early 60's drug manufacturers piece! A great collectible...