This section is from the book "The Adventurous Life Of A Versatile Artist: Houdini", by Harry Houdini. Also available from Amazon: The Adventurous Life of a Versatile Artist; Houdini.
In 1851 Mr. A. C. Hobbs arrived from America, picked a Chubb lock before a committee, and picked the Bramah lock, winning thereby the 200 guineas that for 50 years no one was able to claim.
Mr. Hobbs offered 200 guineas to anyone who would pick his lock. An engineer named Garbutt, known as an expert, took up the challenge, and failed after trying thirty days.