We have a topic on these cards already.
I opened a deck of mine. They're cool. They have a vintage look, but not century-old-plus vintage like the Series 1800; more like from the 1920s or '30s.
If you want that kind of vintage look without actually opening that deck, then order the Vintage Plaid decks from D&D. They're not exactly the same, but they're roughly of similar vintage in terms of style.