| http://www.w3.org/ns/prov#value | - The excellent and clean reputation of Rosenberg meant that by 1935 he persuaded his noted antiquarian brother-in-law Jacques Helft to open a branch in Bond Street, London, to enable them to engage with more Americans.[1] Noted clients included museums such as the Museum of Modern Art (MoMA) (of which Rosenberg was an early supporter and donor), and the Philadelphia Museum of Art. His private clien
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