From the research I've found on many websites, this trinket is an antique Chinese ink stamp/seal. It's included with what looks to be a writing utensil. The attached writing utensil is all the same metal and all solid. The stamp is about 2 inches wide (utensil included) and about 1 and a half inches high. It feels heavy in weight. My assumption of metal is brass, copper, or bronze. It has little to no damage or erosion, just some smudges. It has the English letters "CHIN", which I'm assuming meant to be "China" writen on the side of it and lastly the very bottom has Chinese writing.