Including: statement of cost of making a post cart, n.d.; lists of diamond packets sent from the Foreign Post Office, 1767; statement of cost of prosecuting Mail Robbers, 1767-70; statement of revenue from Penny Post Office, 1761-7; summary profit and loss statement of the Post Office, 1772-6; stated account of Robt Trevor, receiver general of the G.P.O., London, 1776.