1
1st may
background
banner
business
card
cartoon
celebration
character
concept
construction
creative
day
design
employers
employment
engineer
freedom
graphic
greeting
hand
happy
helmet
holiday
illustration
industrial
industry
international
job
labor
labor day
labour
labour day
man
may
national
occupation
patriotism
people
poster
professional
revolution
socialism
symbol
team
work
worker
workers
world