Whether they've bred their Russian Blues with other breeds (they must disclose this and it will ensure it is not a purebred lien. The sole title that basically stayed with these cat was the Maltese and it held till the early l900’s. In 1875 a Russian Blue was revealed https://finnrcluo.liberty-blog.com/35245205/an-unbiased-view-of-russian-blue-kitten-for-sale