Curious as to why the pontil scar a problem?
Of the 4 pieces pictured all have a rough pontil scar. Granted the are all round and"neatly" snapped off. The two vases with thrown wavy rims are classic Powell. 100% sure Powell.
The striped fan vase correlates very well with a shape pictured in the Art Journal c.1890. Page 11, fig19 in Jacksons book, also page 154 fig. 243 [ although the shape of the stem is un-discernable in the photo]. 99% sure Powell.
The small dish with rope stem and ribbed foot 80-90% sure Powell. The bowl of this dish has the same green tint as the foot on the fan vase.
Pontils pictured are fan vase, thrown vases, dish, in that order. top to bottom