Copper & Steel Plate Printing Office
78, Margaret St. Cavendish Sqre W.
14 June 1858
I have had a communication from Sir A Vernon He is very anxious about his plate and wishes to know how long it will be before he can see a proof.
I am Yr Obt Sert
H Fox Talbot Esqre
W. H. F. Talbot
9. Clarges Street
[the envelope, while a typically small one, had two one penny stamps applied; either there was an enclosure (now absent) or the extra stamp was applied for forwarding].