Seguso piece for insurance

[murasaki]

Hi,

I have a few pieces of glass I want to find out value and possibly origin. First off is a piece I have (photos are mine from the auction per seller). I am pretty sure it's an Archimedes Seguso piece. I saw one like it on another site that sells glass. But that piece had two colors, this one has three. I have my pieces catalogued but now I am putting insurance (not selling) values on them. Thanks for the help.