Robert Moses Put Monkeys in a Park in Harlem. They're Finally Gone.The iron monkeys with shackled wrists were mentioned in "The Power Broker," which was published nearly 50 years ago, but had remained mounted in a Riverside Park playground until recently.
Source: Robert Moses Put Monkeys in a Park in Harlem. They're Finally Gone. (https://www.nytimes.com/2023/11/18/nyregion/riverside-park-monkeys-robert-moses.html)