Columbia subject headings:
Holocaust, Jewish (1939-1945)--Poland--Łódź.
Money--Poland--Łódź--History--20th century.
Postage stamps--Poland--Łódź--History--20th century.
Postal service--Poland--Łódź--History--20th century.
Postmarks--Poland--Łódź--History--20th century.
Harvard subject headings:
Holocaust, Jewish (1939-1945)--Poland--Łódź
Money--Poland--Łódź--History--20th century.
Postage stamps--Poland--Łódź--History--20th century.
Postal service--Poland--Łódź--History--20th century.
Postmarks--Poland--Łódź--History--20th century.
Princeton subject headings: