In  Agatha Christie's Poirot S13 E1 Elephants Can Remember we notice a seated elephant ceramic piece in the screen capture above of a scene in Hercule Poirot's study. This classic TV series starring David Suchet, the definitive Poirot, is a masterpiece and known for it excellence in production design with wonderful sets and period locations so its a delight to spot details in the set dressing.
I located a pair of present day bookends that are a close match so it is possible that single elephant seen on the show was one of a pair. Perhaps one one on the show was a 1930's piece but you can have the more recent pair below at an affordable price on eBay : https://www.ebay.com/itm/Urban-Trends-Trumpeting-and-Sitting-Up-Elephant-on-a-Platform-Bookends-Set-of-2/391923951377