I found an article
in the British Medical Journal in 1929 that refers to an
influenza epidemic that year. Perhaps this is the year
when the photos were taken.
Here are extracts
from the BMJ article:
January 1929
"The Registrar General for
Scotland reports that during the week ended January 19th deaths
from influenza numbered 179, which was 123 more than in the
previous week."
Tramway Workers
"The public services suffered
severely, for about 250 tramwaymen were off duty largely from
this cause, and the police force was reduced by a sick list of
230.
In Edinburgh the number of cases of
influenza, though it was generally of a mild type was very
large. As a precautionary measure, the staffs of various
hospitals received preventative inoculations
An offer was made by the health
department of the city
to inoculate staffs of the tramway and other transport services,
and this offer was accepted by a large number of men, over 100
tramway workers having been inoculated by January 25th."
The British Medical Journal, February 2, 1929,
P.219