“J. B. M. K. L. CO. KENT. O.”. Steel body. Steel shackle. Steel dial. Face of lock has no numbers. To open the lock set dial at the 12 o’clock position, then turn the dial 7 clicks to the right, then 5 clicks to the left, then 3 clicks to the right, then 4 clicks to the left.Patent #1825467. US Patent #1929598.