From the Bernard Museum of Judaica - Justify Your Existence exhibit catalog:
With the Workers of Zion, to Battle!
Workers of Zion Party
Palestine, ca. 1923
The broad-based socialist Poalei Zion (Workers of Zion) party founded by Dov Ber Borochov in 1904 was soon plagued by ideological discord and destabilized by numerous offshoot parties.
This campaign poster calls upon voters to cast their ballot (probably at the second Histadrut election, in 1923) for a unified slate of three relatively weak political groups: the left-wing faction of Poalei Zion, the Borochovian Opposition, and the “Non-Partisan” party. The constant formation and dissolution of political parties on both the right and left with seemingly every shift in the political winds remains a part of Israeli politics to this day.
Translation from Hebrew:
With the workers of Zion, to the struggle!
For a Histadrut that will fight!
For the sake of Socialism!
Left Workers of Zion,
The Borochovian opposition,