Victorian glass vase with applied decoration

This Victorian vase is made from a single layer of thick opalescent glass, shading from milky white to pale blue.
It measures 13.5 cm tall, around 8.5 cm across the top rim, & 5.5 cm across the base, which has a rough, snapped pontil mark.
The vase has an unusual folded over top rim, with a J.I.P style peak, & an applied amber crest.
There is applied decoration of a pink & white flower with an amber leaf trail.
I have another vase of similar form with the same folded over rim in pink, however it is damaged, but this one is in perfect condition.
I think probably of Bohemian origin, though it was sold as Stevens & Williams.