The Alsace town of Riquewihr was where I found them. Amarch up the cobbled Rue du Général de Gaulle, past the coloured, half-timbered houses, to a shop called L’Aventure. Not misnamed: it was chaos in there.
The wine glasses I wanted were hiding in a dusty, half-open cabinet in the basement, and had no price. The shop assistant superintending the ground-floor bazaar was foxed; he phoned the owner. Fifteen euros each, came the answer;