Looking through my Charles Hajdamach I noticed on page 101 (!!?)a very similar motif illustrated by Richardson glass,but I suppose it could have been copied .Any thoughts most welcome .
I don’t know who made your nice vases but I recently came across the victorian book, Handbook of Ornament by Franz Meyer. It shows the origins of some of the ornamentation that you often see on victorian glassware.
For example, your palm decoration within a heart shaped scroll looks to be a copy of Greek designs, see plate 104 no.6 and 7, page 194. Also see plate 106 no.5 - design from Orléans railroad station, Paris.
Another good example is page 173 plate 92 no.2 that looks to be the origins of the Richardson acid etched design shown on page 182 of Hajdamach.
https://www.google.co.uk/books/edition/A_Handbook_of_Ornament/H1neEy415-MC?hl=en&gbpv=1&dq=Ornament+by+Franz+Meyer&printsec=frontcoverAlso see:
https://en.wikipedia.org/wiki/Palmette for similar designs.