Kickstarter https://www.kickstarter.com/projects/queengames/chicago-express
English - Chicago Express was funded on the Crowdfunding Kickstarter (See the campaign) platform on the Jun 18, 2014, the campaign lasted 12 days. 477 people helped funded the game, whose the amount requested was $10,000.00. Thanks to these 477 people the game could be funded up to $29,720.00, ~297.20%.
Boardgamegeek https://boardgamegeek.com/boardgameexpansion/47400/chicago-express-narrow-gauge-erie-railroad-company
English - This boxed expansion combines both Wabash Cannonball: Erie Railroad expansion and Wabash Cannonball: Narrow Gauge Expansion into one box.