3 glass fountain pens multicolored and red, possibly murano glass

Description

3 glass fountain? pens, the 2 red ones appear to be the same, the 3rd one is multi-colored-greens/oranges
They have gold? metal? nibs?  It looks possibly like 1 of the red ones might have been used, as there is a little dark color on the nib. The other 2 do not look like they have been used as there is no color on the nibs
I don't know pen terminology. I don't know if they are calligraphy pens, fountain pens?
I don't see any markings on any of them. I don't see any cracks or breaks. The multi colored one is about 9.75" long. The 2 red ones are about 8 3/4" long/
Please ask any questions before placing bid, as these are not returnable