Paper office
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In English law
An ancient office in the paiaee of Whitehall, uffiere all the public writings, matters of state and council, proclamations, letters, intelligences, negotiations of the queen's ministers abroad. and generally all the papers and dispatches that pass through the offices of the secretaries of state, are deposited. Also an office or room in the court of queen's bench where the records belonging to that court are deposited; sometimes called "paper-mill."
Wharton.