Peter Henry Berthon to Faraday   29 May 1865

Trinity House. London. E.C. | 29th May. 1865.

Sir,

The Elder Brethren having accepted the Tender of Messrs. Wilkins & Co. for 1st Order Dioptric Apparatus for the St. Bees Light House, - I am directed to acquaint you that that firm has been instructed to submit the details of the foci for your consideration, with the result of which I am to request the Elder Brethren may be duly favoured.

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

P.S. Copies of the Specification and Elevation are enclosed.

Professor Faraday | &c &c &c | Royal Institution