1950s
20th
and
archival
assemble
assembling
belgian
belgium
black
britain
british
century
chain
class
electric
factories
factory
female
females
fifties
German
germany
great
group
groups
hall
historic
historical
human
humans
industrial
industry
interior
Kingdom
labor
laborers
labour
labourers
line
machines
manual
manufacture
manufacturing
motors
old
people
person
photograph
picture
produce
production
twentieth
uk
United
white
woman
women
work
workers
working