In 1992, Donna Smith telephoned Clark, the manager of Penbridge Farms, in response to an advertisement Clark had placed in the July issue of the Emu Finder about the availability for sale of proven breeder pairs. Clark told Smith he had a breeder pair available. Clark sold the pair to Smith for $16,500. Some months later, after Smith had had a chance to inspect the pair, she discovered that Clark had sold her two males. Smith immediately notified Clark and revoked her acceptance of the animals. Clark said the revocation was too late. Was it? [Smith v Penbridge Associates, Inc., 655 A2d 1015 (Pa Super)]