Yellow cased glass with prunts - is it Loetz Tango glass?

I recently acquired this unusual yellow cased glass jug / ewer and set of six matching tot glasses, all with three applied black prunts. The jug is 12.5cm / 5" tall and the glasses 4.5cm / 1.75" tall. All pieces are unmarked as far as I can see. The colours seem similar to Loetz Tango glass - any ideas / suggestions would be much appreciated. Thank you in advance.

This page on Loetz tango glass may help you if you don't know it already.
https://sites.google.com/site/loetzandglass/loetz-4--tango-glass-1

I don't think they'd use clear glass on a tango piece like that so, among other things, I'd be very doubtful what you have is Loetz, but I'm not an expert.

Have a look at Italian glass, could possibly be Empoli.