Foo Dog or Shishi - Gilt Bronze

I bought this from a friend recently. It's 4.5 inches across and extremely heavy for it's size. it feels like it's made of lead. i don't know anything about it but my friend says he thinks it is Chinese [he was raised for the first 15 yrs in the Shanghai Jewish community]. The wear marks and verdigris look authentic to me. He's really got character! any info appreciated.