There are some interesting photos in this collection.
The original ambrotype of Dorothy Bell (Simpson) is a negative image on a glass plate, with a piece of black velvet behind so the viewer sees a positive image. Ambtotypes were only produced for a short time so we can date it fairly accurately.
The coloured photo of the Coxon siblings is rare image of all the Coxons with their spouses, the exception being my father Jack Wilson who was killed in WW2.

Bell, Dorothy - knitting
 Ambrotype c 1860-0160-0200.jpg)
Bell, Dorothy, (nee Simpson) Ambrotype c 1860

Bell, Mary E, sitting
, Youth2-0117-0200.jpg)
Coxon, Annie (Nancy), Youth2
 on mcycle-0120-0200.jpg)
Coxon, Annie (Nancy) on mcycle
, 1925-0125-0200.jpg)
Coxon, Annie (Nancy), 1925
, c18yrs-0121-0200.jpg)
Coxon, Annie (Nancy), c18yrs

Coxon, Bob & Margaret with Ellie & Eddie Wilkes
, youth-0115-0200.jpg)
Coxon, Evelyn (Ellie), youth

Coxon, George

Coxon, Henry George

Coxon, John Isaac
, youth-0122-0200.jpg)
Coxon, Margaret (Peggy), youth
, Nancy & Stoker-0130-0200.jpg)
Coxon, Mary (holding unknown), Nancy & Stoker
 Amy Temple, Pat Wilkes, Maggie Russell (Gordon) & Margaret Coxon (Kain)-0200-0138.jpg)
Coxon, Mary (left-right) Amy Temple, Pat Wilkes, Maggie Russell (Gordon) & Margaret Coxon (Kain)
 Coxon, at 7 Argyle Terrace-0149-0200.jpg)
Coxon, Mary E, with daughters Annie S Coxon & Dorothy S (Dora) Coxon, at 7 Argyle Terrace

Coxon, Mary Temple

Coxon, Mary w flask

Coxon, Mary, garden

Coxon, Mary, running soup kitchen 1925

Coxon, Matthew Bell & Florence

Coxon, Matthew Bell, youth
 in London (1938)-0200-0141.jpg)
Coxon, Nancy & Peggy (Wright) in London (1938)
 in School group-0200-0117.jpg)
Coxon, Nancy (middle back row) in School group

Coxon, Nancy with cat, Kitty as Cinderella

Coxon, Ossy & Greta

Coxon, Oswald, youth

Coxon, Rare group of all Coxon siblings plus husbands - 1971

Coxon, Robert & Mary in doorway

Coxon, Robert & Son Bob with golf pals

Coxon, Robert with sons Bob & Ossy

Coxon, Robert, Mary, family group

Coxon, Robert, work clothes with Kitty, Ossy & Nancy

Coxon, Robert, youth

Coxon, Robert

Coxon, William Dawson - believed to be
 running soup kitchen 2-0200-0178.jpg)
Coxon,Mary (just behind prominent cap!) running soup kitchen 2

Coxons Robert & Mary in garden with Kitty, Nancy, Ossy & Ellie
, Margaret on right-0127-0200.jpg)
Russel (Gordon), Margaret on right

thrum mill 1921

Wilkes, Eddie & Ellie Coxon, with Nancy, Kitty, Ossy

Wright, Peggy & Jack with John