An uncommon French wine glass referred to in the literature as "Model L'Impossible",a two piece glass with diamond moulded trumpet bowl on a plain conical foot.

A fine uncommon glass in perfect original condition with a small piece of "silica" in the metal towards the base of the bowl

see "Bellanger" Verre de Usage et Prestige for similar examples .

Height 5 3/4 ins 14.6 cm.