That is not correct. I have seen a Venini carlo scarpa unsigned vase that only had a MADE IN ITALY STICKER, and a vase that was att. to Fratelli toso, also, sticker Made in italy from Uniques & Antiques Inc. and another that had 2 seperate stickers, one that was very worn-Vetri Artistica and the other sticker Made in italy. I'm pretty certain that there's a silver foil label Made in italy decribed in Leslie Pina's Italian glass, pg. 15. I would'nt want people to think that MADE IN ITALY does'nt mean murano or is'nt authentic as that's just not the case, but thanks.