Broker vs. Broker

Postcard credit: "Untitled" (Edward Gorey, Republished in 2010 as part of Mysterious Messages, Cryptic Cards, Coded Conundrums, Anonymous Notes).

Pin: Fleur Sciortino.

Cards:

• "Data Dealer" (Mauricio Herrera, 2012), from Android: Netrunner, designed by Richard Garfield & Lukas Litzsinger, published by Fantasy Flight Games.
• Koryŏ (2013), card game by Gary Kim, art by Stéphane Gantiez, published by Moonster Games.