both glasses have quality Penelope - very nice - and welcome from me also.
May we please see a pic of the underside of the foot on the cut to clear champagne saucer/coupe - and you may be correct that this is Bohemian/Czech, although not my area, so hope someone is able to help you with a date guide.
the glass with uranium bowl has an unusual stem/foot arrangement, and it may be difficult to provide attribution/provenance. Can you give some idea of the amount of wear on the feet of these pieces please.
Were these auction purchases?