R.W. Swinburne & Co to Faraday   31 January 1857¹

Red Bull Wharf, | 93, Upper Thames Street, | London, E.C. 31 Jany, 1857.

Sir

We have the pleasure to inform you that we have completed arrangements with Monsr. Petitjean² for the exclusive use of his Patent Process for Silvering Glass with pure silver³, and that we are now prepared to silver any Glass that may be ordered of us, or any that may be brought to us, the produce of other Manufactories.

By this process blind frames are not required, and the silvering is not affected by damp, heat, or climate.

The following is the scale of Prices for Silvering

Above 20 feet, special Prices.

Specimens can be seen, and every information obtained at our Address, as above.

We are, | Sir | Your obedient Servants, | R.W. Swinburne & Co

M. Faraday Esq