Notebooks belonging to Berel "Boluś" Fiks (later called Ben Zion Hadar) from when he was in hiding in Warsaw, 1944

Notebooks belonging to Berel "Boluś" Fiks (later called Ben Zion Hadar) from when he was in hiding in Warsaw, 1944 – Polish and math notebooks belonging to Berel Fiks (his name is on the cover of one of the notebooks). On the first page is written: "Zeszyty 7-letniego Bolusa Fiksa. 25/5/44". Comments by the submitter of the material (Tomer Hadar): The father of the submitter of the material was Holocaust survivor Ben Zion Hadar, whose last name was originally Fiks...