Israeli stamps commemorate Third & Fourth Aliyot

Israel's Third Aliya, a wave of immigration between 1919-23, has been commemorated with a stamp bearing a representation of the S.S. Roslan, which was used to transport Jewish immigrants. The theme of the stamp honoring the Fourth Aliya, which began in 1924, is the construction of cities.
The waves of Jewish immigration to Israel, known by their Hebrew name Aliyot (plural for Aliya), are regarded as having begun in 1882. The First and Second Aliyot arrived prior [...]