"Clive" Whieldon Ware value? rare?

I cannot find these anywhere!! I've seen some of the green "Clive" pattern (with floral and bird motif) but nothing like my blue and white "Clive". I am dying to know what it's value is.

I purchased a set of china at an auction in 2000. The pieces are all white and blue, with a blue "spearhead" type pattern radiating outward around the rim. The rims are also gilded. 

There are 6 each of: dessert plate (?), salad plate, dinner plate. Also three platters ranging from medium to very large, 2 covered serving dishes, a compote dish with spoon and plate and a gravy boat. 

The covered serving dish handles seem to be a sort of "acorn" shape.

The mark on the back of all of these reads "Whieldon Ware, F. Winkle & Co, Clive". Based on the mark, I know that these were produced between 1925-1931 in England.