Hi Charles,
The vase is pictured on the Fratelli Toso book, not the Dino Martens book.
Not sure why they are saying it's Martens on the auction.
There are 2 versions of the vase that I've seen so far (im sure there are more). One with 2 bands, like yours, making an x, and 1 with a thinner bands that wraps around more times, like a candy cane.
Javier