Victorian cased satin uranium glass vase with raised enamel decoration

This is a lovely vase I got yesterday in a local antiques shop - I popped in to kill some time before my train arrived, & was thus rewarded!
It is made from two layers of cased glass with a smooth satin finish, the outer layer containing uranium & exhibiting an intense glow under UV light. In person the vase has a light green cast, not quite as off - white as it appears in the photos. It measures 18.5 cm tall, 6 cm across the top rim, & 5 cm across the base. There are two clear applied handles & raised enamel decoration, as well as some tiny ruby red beads. The delicately painted blue butterfly is a perfect accent to the colour of the vase.
It has a slight chip to the top rim, but not very noticeable.
Bohemian origin...maybe Harrach? Or Riedel?