1837 letter insert from Rowland Hill headed "2 Burton Crescent, March 18" to John Arthur Roebuck, M.P. for Bath, the content includes "I send you a copy of the published edition of my book with the new facts indicated on the title page" (referring to "Post Office Reform: Its Importance and Practicability, 1837") and "if we can create a little agitation in favour of the measure I really think the government will take it up" (referring to Uniform Penny Postage), etc., an interesting and important item