Helena Biernacka, née Żarska (1875-1946), wife of physicist Wiktor B.(1869-1918), pioneer of Polish radiology , mother of Janina Biesiekierska, participant in the Warsaw Uprising (1902-77) in the Bakcyl unit, Chrobry 2 grouping, doctor - ophthalmologist.
Visitor's ticket printed: Madame Helene de Biernacka nee de Żarska. Sheet (delaminated/split 3 sheets forming a thicker piece of paper) measuring 4.1 x 9.3 cm.
Condition: minor corner crease, soiling, stains.
