Curio Cards art token for Card #6 (Ink), art by Phneep.
Historical Significance
Part of Curio Cards, the first art show NFT collection on Ethereum and an early model for fixed-supply digital art ownership.
Context
Curio Cards launched as an online Ethereum art gallery in May 2017, before ERC-721 was widely adopted. This contract belongs to the original release set and was deployed by Rhett Creighton (@rhett_creighton), Curio Cards co-founder and Solidity developer. Published May-16-2017 10:50:41 AM +UTC.

Curio Card #6 artwork: Ink by Phneep.
Source: Curio Cards documentation
Token Information
Key Facts
Description
Curio Card #6 (Ink) is an original 2017 Curio Cards art token with artwork by Phneep. Ink is part of Phneep's Cards 1-10 sequence and completes the Clay, Paint, and Ink trio of creative tools. The artwork shows a quill and ink, setting up later cards about works that can be made with those tools.
The contract uses ERC-20-style token functions with symbol CRO6, 0 decimals, and on-chain totalSupply 100000. The card token is locked, so no additional cards can be minted. Final card supply is 438.
Heuristic Analysis
The following characteristics were detected through bytecode analysis and may not be accurate.
Spurious Dragon Era
Continued DoS protection. State trie clearing.