What may be, according to auction house Adam’s, “the oldest unopened expression of Irish single pot still whiskey sold in modern times“ could score a pretty penny when it goes up for auction this month.

Leftover from 1916, the year of Ireland’s Easter Rising, a bottle of Allman’s Pure is going up for auction on April 19. In the bottle’s 100th year of not being tasted, it’ll start somewhere between $6,800 and $11,400, though it’s expected to go for more than $17,000.

Allman’s Pure was an Irish whiskey from the Bandon distillery (1826-1925), one of the first distilleries to age its whiskey in sherry-seasoned casks from Cadiz, Spain. In its day, it was Ireland’s second largest malting facility, with only Guinness beating it out. It was a beloved distillery actually. When English journalist and "father of whiskey commentary” Alfred Barnard visited it in 1886, he called it the most successful rural distillery in Ireland. And now you can drink the last of its spoils.