German composer and conductor who became a Broadway musical director (1857–1923). Original 4.25 x 6.5 cabinet portrait of Kerker seated, signed in the lower border in black ink, “As ever yours, Gustave Kerker,” and signed and inscribed on the reverse, “To the friend of any youth, Richard Copley, from Gustave Kerker.” Published by W. & D. Downey of London. In fine condition, with light contrast to signature on the reverse against the studio text. RR Auction COA.
