Single-sheet document in German. Typewritten text with ink signature of Asta Nilsson Delegate of the Swedish Red Cross. 1 p. Rare 1945 Holocaust-era document signed by Asta Nilsson, evidencing the rescue of Jewish children in Budapest and her overlooked role in Swedish Red Cross humanitarian efforts. Original typewritten document, signed in ink by Asta Nilsson, certifying that Sonja Holländer served with the Swedish Red Cross Child Welfare Division from 1 November 1944. Issued in Budapest on 10 March 1945, shortly after the city's liberation, the certificate affirms that Holländer managed a children's home during the siege of Budapest, protecting those in her care and securing food supplies through her work as an interpreter with Soviet forces. The testimonial acknowledges her selfless service under siege conditions and provides rare documentation of Swedish civilian relief efforts at the close of the war. Asta Nilsson, a representative of the Swedish Red Cross (Svenska Röda Korset), led the Rädda Barnen (Save the Children) initiative under the Swedish Embassy's humanitarian mission in Hungary. She worked alongside prominent figures such as Raoul Wallenberg, Per Anger, and Carl Ivan Danielsson, all involved in diplomatic and relief operations that contributed to the rescue of thousands of Hungarian Jews. While Wallenberg's role is internationally recognized, Nilsson's contributions to child rescue efforts remain largely unacknowledged in historical narratives, and she is not yet listed among the Righteous Among the Nations. Despite the formal recognition in this document, the further fate of Sonja Holländer remains unknown; no additional records of her life or activities after March 1945 are currently known. This testimonial was likely issued as part of the post-siege effort to provide official documentation for relief workers necessary for legal protection, repatriation, or postwar claims in the chaotic months following the city's liberation. Horizontal and vertical creases from historical folding; small puncture (approx. 2 mm) near upper margin, not affecting text. Minor edge wear and toning, with light soiling along fold lines. Paper remains stable and fully legible; ink signature is clear and unfaded. Well-preserved example, suitable for handling or display with appropriate conservation care. Single-sheet document in German. Typewritten text with ink signature of Asta Nilsson Delegate of the Swedish Red Cross.