Bohemian Art Nouveau iridescent glass vase in pewter mount

This is a super vase I picked up from an Aussie seller on Etsy recently!
It is made from a single layer of blue - green glass with an intense iridescent finish, & measures 27.5 cm tall, 9.5 cm across the top rim, & 11.5 cm across the base. It also features four applied "tadpoles" & a very impressive pewter mount, made by Van Houten. The mount features a design of Lily of the Valley - I've made sure to photograph alongside my currently blooming examples.
It does have a few minor condition issues but that made it most affordable for me & it is still so stunning.
Bohemian orgin, circa 1900. The seller had this ID as Kralik, any thoughts welcome.