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background
badge
banner
card
celebration
construction
day
design
emblem
employers
fight
freedom
graphic
greeting
hammer
hand
happy
helm
helmet
holding
holiday
icon
industrial
international
label
labor
labour
man
may
mayday
meeting
national
party
patriot
protest
punch
revolution
rights
safety
screwdriver
socialism
strong
trade
union
victory
vintage
worker
wrench