Without risking loosening the label I think it is metal foil - not paper. - does that mean later rather than earlier?
I will happily send you photos for the Zoo - will email separately better quality photos.
The Da Ros attribution was again from Design and Arts
<<Antonio da Ros, Cenedese Vetri Murano um 1960
Schöne Figur einer stehenden Ente
Türkisfarbenes Klarglas. Eingeschmolzenen große Luftblase und rote Unterfänge
Höhe ca. 12,5 cm
Durchmesser / Länge ca. 7,5 cm
Signiert / Gemarkt: Gemarkt mit Manufaktur Label
Signed / Marked: Marked with manufactory label
Zustand: Sehr gut
Condition: Very good >>
I had to buy two ducks from them to justify the freight cost! At least that is my excuse!
(Your other post just arrived as I was trying to post this - so Da Ros for sure then