“…Leader of the Polish working-class movement. Biography on back.…”

“…Free translation: Working class of Bangladesh should unite to capture state power.…”

“…Workers Summit 1989 - The working class united will never be defeated! Backside: Unite against the LRA!…”

“…These Workers' Day greeting cards are intended to inform people about the history of Workers' Day to promote 1 May as a specifically working class day with its own tradition.…”

“…Petersburg 'League of struggle for the emancipation of the working class'. From: Bro 587/2 fol. Compare: 69/39 A, page 26.…”

“…Numerical growth of the working class in USSR in pictograms.…”

“…'A happy event for the Chinese working class.'…”

“…'The working class must exercise leadership in everything'. …”