Antique dealers specializing in garden furniture might have this type of table including Appley Hoare; they are dealers in 18th and 19th century French furniture, lighting, mirrors, paintings, stone garden decoration, cast iron garden urns and iron and wooden garden furniture. You might also try Holloways, as they are specialists in a huge and eclectic range of antique garden ornament and The Decorative Collective. The Decorative Collective are a group of antique dealers that specialise in everything from period lighting to period garden ornament and their website has a regularly changing assortment of benches, urns, statuary, chairs, tables and all types of other garden items in all materials.