Information Digital ID snv002396-011 Details Member of Leaflet, The Old Timers, 1967 Digital Project Southern Nevada The Boomtown Years 1900-1925 Transcription Single Jacking Single jacking on upper holes was tiring on the hand and arm. To lessen the fatigue, old timers used a thong on the hammer handle which permitted the opening and relaxing of the hand on the back stroke.
