Portmeirion were making some things in this sort of style and technique recently, (as in the '00s) platters and household sort of decorative useful things, but I've not seen this colour before. They were normally window glass green.
I can't find any images online, but my brother has a load of them, found in TKMaxx.
And I've seen Italian glass which uses this technique in TKMaxx too, but it tends to have copper inclusions and enamel pictures incorporated.