Letter from Editor of the Pamphleteer to the Author of Exportation asking for his name in order to publish the piece. Also a draft of Manning's reply, refusing to supply the name. Dated 17 April 1818. Handwritten, 1 piece, 1 side. "A Letter on The True Principles of Advantageous Exportation" was published in the Pamphleteer, Vol XII, 1818.

Letter from the Editor of the Pamphleteer to the Author of a Pamphlet on the True Principles asking for permission to put it in the Pamphleteer and for the Author to furnish him with a copy and any alterations required. Dated 19 April, 1818. Handwritten, 1 piece, 1 side

Letter from the Editor of Pamphleteer to the Author of Exportation again asking for his name. Dated 27 April 1818, Handwritten,1 piece, 1 side

There are two letters:

• Draft Letter from Thomas Manning to "My Lord" in which he remembers his gratitude for his Lordship providing a letter for him to carry when he was travelling to China, in case they were attacked by the French. He now asks for letters of introduction to English residing at the Italian court as he is about to proceed to Italy in order to spend about 2 years. Dated 2 June, 1827. Handwritten, 1 piece, 1 side.
• Draft letter from Thomas Manning to "My Lord Duke" in which he thanks him for the letters of introduction and writes more of his studies in mathematics, philosophy and language. Though able to read Italian he wants to be able to attend to its pronunciation. Undated [1827] Handwritten, 1 piece, 1 side.

Letter from Thomas Manning to Samuel Ball asking whether it is still possible for him to dine with Ball that day. Dated Ginger's Hotel, Westminster Bridge, 17 March. Handwritten 1 piece, 1 side