I've tasted madiera-style wine from Crimea IIRC from the 1800s. It was in an Enomatic machine in Hedonism Wines in London. I could not say it was appreciably be

I've tasted madiera-style wine from Crimea IIRC from the 1800s. It was in an Enomatic machine in Hedonism Wines in London. I could not say it was appreciably better than something more modern. On the other hand, I've had a glass of tawny port from the 1970s that Chez Bruce had on the menu at one point that kicked off a fruitless search into every barrel aged fortified wine I could get my hands on to recapture. It had a caramel taste that lingered for 30 minutes or more after the last sip. Amazing stuff.