SPALDING VC mark posy vase

Hi,
despite repeated attempts, have been unable to identify the maker of this:

Small glazed stoneware(?) waisted posy vase, - in muted pale-brown shades
just under 100mm (h) x 70mm (w)  - weighs 246g  

impressed Maker's Marks:
- lower-case "v" (or possibly l/c Greek letter upsilon?) and capitalised C - on either side of a central indent
with "SPALDING." in smaller capitals on the base rim





Any suggestions...?

A quick Google gives a Greenfield pottery at Holbeach near Spalding. Potters being Jo Rollason and Mark Judd Cooper