Transcription from the historical marker:

"One of the most notorious gambling houses of the Southwest opened in a tent on April 23, 1889. Soon a frame building went up, later replaced by brick. The owners claimed their doors never closed, day or night, for 15 years. When closed by prohibition in 1907, a key could not be found. Inside, a sign proclaimed:

'We the citizens of Guthrie are law-abiding people. But to any one coming here looking for trouble, we always keep it in stock with a written guarantee that we will give you a decent burial. We will wash your face, comb your hair, and polish your boots. Place your sombrero on your grave, and erect a memento as a warning to others saying … ‘he tried and failed.’''