Curio Cards is an online art show and permanent gallery that launched on May 9, 2017. It is the oldest known Art NFT project on Ethereum, featuring 30 unique series of NFT cards from 7 different artists. Curio Cards are referenced with CryptoPunks and CryptoKitties in the original ERC-721 Non-Fungible Token Standard, and pre-dates them both.
Given the age of the project, Curio Cards need to be wrapped to work with OpenSea. Wrapping upgrades the card, placing it inside a newer contract which is OpenSea compatible. You can then buy, sell, and unwrap cards at anytime. Find out more on the Curio Discord, the Curio Docs, or go here if you need the Curio Wrapper Tool.
A 1% artist royalty fee on OpenSea sales was voted in by the community on 3/31/21. 100% of this royalty is split equally between the original artists only.