Pollen first began working for
Sotheby's in 1957, rising to become an aide to the company's chairman,
Peter Wilson, before he was made the company's first New York City representative in 1960. After the company purchased Parke-Bernet in 1964at the time the largest auction house in America he became the head of Sotheby Parke-Bernet. He expanded it throughout North America, opening facilities in
Houston,
Denver, Los Angeles,
Buenos Aires, and
São Paulo. He also spearheaded the opening of
PB 84, a
discount store, in New York City in 1968. As an auctioneer, he was known for having a dramatic flair. By 1966, the auction houses' sales were $23.5 million, and $38.5 million by 1970. In 1972, Pollen became vice-chairman of Sotheby's and returned to England. As the largest
private shareholder in the company (with five percent), Pollen was considered the likely successor of Wilson as company chairman until the company began losing money which many blamed on over-expansion. When
Gordon Brunton was made the chairman after Wilson's retirement, Pollen left the company, retiring in 1982. == Personal life and death ==