 1917-1918 existed organization called "Noorte Kujurite Ühing "Vikerla"" ('Young Sculptors Union "Vikerla"').Members were Oskar Kallis, Balder Tomasberg, Välko Tuul, Aleksander Mülber, Aleksander Krims-Radava ja Roman Haavamägi and Paul Liivak.This organization was so short-lived because some members died during Estonian War of Independence.