Daguerreian Unknown c.1857

AN UNRECORDED PORTRAIT OF JOHN BROWN - QUEEN VICTORIA'S PERSONAL SERVANT c.1857, sixth plate daguerreotype portrait, in a plain gilt matt with rectangular aperture, some siginificant tarnishing to the plate peripheries, in a side hinged marroon leather case. He can be seen in full facial profile in both of the two references below, and is also wearing the same clothes in both sittings.

Reference:

https://www.npg.org.uk/collections/search/portrait/mw00845/D-Kennedy-J-Smith-Willy-Stewart-John-Brown-F-Farquarson-John-Morgan-Charlie-Coutts-P-Robertson-and-John-Grant?LinkID=mp00594&role=sit&rNo=0

Phillips: Photographs, 4th November 1983, lot 145 - Royal Album