Shlomo Laadan (Solomon - Selek Landesdorfer)
Brit Hatzohar (Union of Zionist Revisionists) membership certificates in west Lesser Poland and Silesia, in Brit HaHayal Poland, Hatzach (New Zionist Organization), National Labour Organisation, Dinar and Shekel certificates, delegate card for Brit Hatzohar conference in Krakow, notice from Tel Aviv Labor Council, 1933, Betar poem handwritten by Shlomo Laadan, confirmation of his activity in Betar and the Movement, Krakow, 1938.
Speech by Shlomo Laadan at Hatzohar conference (photocopy).