This is exciting - I so appreciate the things I can learn here. I bought a "children's decanter set" some time ago - and didn't believe it - stupidly! I thought naaa, must have been for absinthe or laudanum. Two decanters of 5" and 4", a jug of 2 1/2" and a ?cup, beaker? of 1 1/2", in what may be rosalin. There are no seams in the glass that I can see, and they appear to be of excellent quality - but I am no expert! They have a dusty green glow under UV, but no where near as strong as vaseline glass. Just fascinating - thank you for the link to your site. Have attached a photograph to show size against a "normal" size decanter and glasses - excuse my photography - just learning! Best wishes, Lesley.