The Centenary Gritstone Ale is now available for purchase form Jolly Sailor, from their on-line shop.
It’s available as a 12 pack for £30.00. Here is the link to get there: https://www.jollysailorbrewery.uk/buy-online/shop/
They usually deliver to the West Yorkshire area on a Wednesday. Initial supply is limited so order now to avoid disappointment.