Cartes de visite
Cartes de visite were popular
from the 1850s until around 1900. They were photos measuring about
3.5"x2.25" mounted on trade cards measuring about 4" x 2.5".
The photographer's name and address usually appeared on the back of the
card. The John Horsburgh cartes de visite that I have seen have
many different styles of back. See below.
From the examples of John Horsburgh's cartes de visite
that I have found, it appears that, unlike most other Edinburgh
photographers, he specialised in photographing