Grosperrin No 25 Cognac 1925 42.1% 700mlGrosperrin No 25 Cognac 1925 42. 1% 700ml from Grosperrin. Cognac Grosperrin (Maison Guillon Painturaud La Gabare SA) is a small ngociant bottler in Saintes specialising in single cask, single cru, vintage dated Cognac and Pineau des Charentes. The maison sources mature eaux de vie from across the Cognac crus (Grande Champagne, Petite Champagne, Borderies, Fins Bois) and bottles them at natural strength as numbered single vintage releases the