Celebrate #BitcoinBirthday with a #Bitcoin Whitepaper poster.
Happy 15th birthday, #BTC
Lightning⚡️accepted.
https://bitcoinoutlaw.com/product/bitcoin-whitepaper-poster-black/ 
Discussion
Bah gawd that white paper is black!
Don't worry there's a white version.
Yep. And there’s also an excellent-looking version with black ink on a white background 💪
https://bitcoinoutlaw.com/product/bitcoin-whitepaper-poster-white/
Happy Birthday #Bitcoin