Antique Pair Crown Devon S.Fielding & Co Windsor Pottery

Beautiful pair of Crown Devon (S. Fielding & Co, Devon Pottery, Stoke, Staffordshire Potteries) vases c.1917-30.
The vases are decorated in the Etna pattern, transfer printed and hand coloured.
Both vases are in very good condition. One vase has a small hairline to its rim and they both, in places, have some crazing to their glaze (please see photos)
Both have a printed makers mark including a Regd No. 578617, to their bases.
The vases stand approximately 23.5cm (9 1/4”) high and they have a diameter of approx 11.5cm (4 1/2”) at their widest point