Reward for Proof of Spirits (the Ghostly Variety)
Thursday, September 4th, 2008
From the March, 1928 issue of Science and Invention. For a moment I thought this Prohibition-era announcement was begging for booze, but they were looking for proof of communication with the dead.
Mentalist Joseph Dunninger had just added $10,000 to the pot. This reward offer apparently stood for years.
The current big reward for proof of paranormal activity is (put your pinky finger to your face when you say this) one million dollars, and is offered by James Randi.