The Westminster dog show is turning 150. Here's what has — and hasn't — changed over time

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1956 AP

FILE - The Duchess of Windsor, Wallis Simpson, left, holds Ch. Pugville's Golden Victory during judging of the pug class during the Westminster Kennel Club Show at Madison Square Garden in New York, Feb. 13, 1956, as the dog's owner, Arnold Canton, far right, and dog breeder Harriet Smith, look on. (AP Photo/Jacob Harris, File)