This beautiful anniversary plate with the mommy dog and puppies is 9" in diameter. It was produced for the Mother's Day anniversary dates from 1969-1979 by Bing & Grondahl of Denmark. The dog appears to be a spaniel.
The mark on the back is the 1970-1983 three towers green mark that reads: "Copenhagen Porcelain, Made In Denmark", with the B&G logo in the center. The number 9879 with Mother's Day below that, also in blue is what I assume are artist intials CY. There are no chips, cracks, or wear of any type on this lovely plate.
The first Bing & Grøndahl Mother's Day Plate was issued in 1969, 2009 will be the occasion of its 40th anniversary. Bing & Grondahl is one of the finest names in plate collectibles.