The term 'dosage' refers to the amount of sugar added to champagne just before the final closing of the bottle. In case of 'brut' a maximum of 12 grams of sugar per liter is added, 'extra brut' will contain no more than 6 grams. 
Champagne used to be a sweet drink, but these days champagne lovers prefer it dry. More and more champagnes have no dosage at all: 'brut nature', or 'zero dosage'.

Cuvée de Crayères magnum (1.5 liter)
Special cuvée magnum (1.5 liter)
Renaissance
Vendor:Eric Taillet

Renaissance

€72,50
Vintage 2018 Blanc de blancs
Vintage 2015 Cristal - giftbox
Grande Cuvée - Edition 171
Les 4 Terroirs n18 magnum (1,5 liter)
Vintage 2015 Grands Terroirs giftbox
Vintage 2017 Rosé de la Côte des Bar
Vintage 2019 Absimilis
Brut Apanage (giftbox)
Mesnil Experience brut nature
Les Vignes de Bisseuil (July 2022)
Vintage 2013
Vendor:Dom Perignon

Vintage 2013

€279,00
Rosé
Vendor:Bollinger

Rosé

€95,00
New
Vintage 2015 - tribute to Jean-Michel Basquiat
Vintage 2015 Sous Les Trous
Vintage 2018 Val Moré