ZABW 5112 1/a is a letter book of correspondence from the Waikato Hospital to patients, staff, builders, banks and job applicants. Those were days when letters were still hand-written and copies of these were saved on carbon paper. (Who would remember carbon paper these days?). Some of the correspondence is about social relief and which hospital board was responsible for it. Money must have been very tight. This record is at Auckland National Archives.
This example is in a book dated April 1899 to August 1902 and is indexed in the front.