Gabrielle Ashkenasy ORT
Letters fron Ivan Goncharov to Horace and Louise de Gunzburg
Letters from violinist Auer to Horace de Gunzburg 1884 1885
Letter from Anton Rubinstein to Horace de Gunzburg 1890
Alexandre de Gunzburg Family memoirs
Letter with mention of A. Koni
. Koni
Letters from Count Pyotr Valuyev (Russian Statesman) to Louise de Gunzburg Sassoon
Invitation to exhibition for charity of artist’s orphans to Horace de Gunzburg
Letter from Russian Education Society
Letter about philantropic event with Grand Duchess Anna Pavlovna
Letter from Ivan Delyanov Minister of National Education to Horace de Gunzburg
Letter from A. Maltsov to Horace de Gunzburg
Letter from Ivan Turgenev, Mark Antokolsky, Alexey Bogolyubov, Alexey Kharlamov, Nikolai Sachs to Horace de Gunzburg
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Letters from Prince Orlov to Horace de Gunzburg
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