Rindskopf Iridescent Striated Quadricorn Vase

I would never have come across this beautiful vase if it weren't for a lovely friend from CW pointing it out to me. (I consider myself to be very lucky - thank you!) :) The original seller's pictures of this vase were very dull, but when it arrived, I was excited to see it gleaming through layers of bubble wrap. It is a very iridescent example of their 'striated' decor, in an interesting quadricorn form. Also, the base color of the glass is a deep blue, rather than the deep purple I would have expected. I think this is a bit unusual, as all of the other dark iridescent Rindskopfs in my collection are a deep amethyst. This vase stands 7-1/4" tall, and is heavy for it's size.