Indeed. But he did not refer to the most common sight, in other places, if not in Nottinghamshire—that of a photographer with a monkey on his arm, or even more than one monkey. A great feature of working class life when I was a kid was having one's picture taken with the monkey.
The clause does not refer to monkeys, but I can understand why Nottingham would wish to control photographers who are likely to visit there with monkeys. Mention has been made of the Goose Fair. That could be turned into a monkey house if unrestricted entry was given to photographers to take or purport to take photographs of people with their monkeys.