4 art deco stemmed port wine glasses in smoked salmon glass with black base

4 art deco ribbed port glasses, sherry, in salmon smoked glass, on black bases imitating obsidian. Probable work from the doyen glassworks in havre ville (belgium). Around 1930. In perfect condition. We also have: 7 champagne glasses and 4 shot/digestive glasses from the same collection on other listings in our store. Dimensions: height: 8.7cm diameter: 5cm weight: 400gr.