Peter Henry Berthon to Faraday   1 July 1864

Trinity House, London, E.C. | 1st July, 1864.

Sir,

The First Class Lighting Apparatus constructed by Messr Sautter being now ready for inspection at this House, I shall be obliged by your attending and reporting thereon at your early convenience.

I am, | Sir, | Your most humble Servant, | P.H. Berthon

Professor Faraday | &c &c &c