Signed Authentic unusual Porcelain Casagranda Vase!!!

I think these can be attributed to Steve Casagranda from Colorado, who is the son of well known potter Herman Casagranda. This is clearly his signature style on other of his pieces. This was given to me bought from the potter by the gift giver. Aside from its pedigree, it is a beautiful vase in a strikingly beautiful and unusual form. 6” tall, 5” wide at center, 2.75” open at lip.