The back of the cabinet print
above states that Turnbull & Co are licensees for the Chromotype and other
Robert Lansdale, editor,
'Photographic Canadiana', writes:
"By the way the image of the gentleman seated
in the chair does not appear to be a Chromotype as the highlights appear
faded and burned. Carbon/chromotype
prints are noted for the skin tones and do not fade.
Many photographers bought the rights to
the processes but soon found it was too difficult, or that there
were easier ways to make prints. They continued to promote that
they offered Chromotype and Lambertype prints.
The bromide print came in about the 1880s and
overtook the market."
Robert Lansdale: December 8, 2007
For further details of the
Chromotype process and its history, Robert Lansdale recommends reading
Audrey Linkman's article in 'Photographica World'
(issue #91, Winter 1999/2000).