Dunnings Alley
Bishopsgate, Without <G. G.?>
16th Sepr 1857
H. F. Talbot Esqr
Sir,
In reply to your favor of the 15th inst my fee for the Assay of an Iron stone for Iron only is 7 / 6, & for a complete analysis Three Guineas
I am Sir Your Obt Servt
John Mitchell