Interesting. Coramandel is in India and was a British possession in 1869. The East India Trading Co was the big company up until 1858 when the British crown took it over (essentially this private company had become so big and powerful that it became a potential threat) I am guessing that Coramandel would be a later company that came about after the dissolution of the East India Co. although I could not find anything about it online. This would appear to be a sample that could be shown to a potential buyer. Kind of like a salesmans sample for a boat yard or shipping firm. The question is if it is truly old, or if it is a later reproduction. Can you show us some pictures of the back? The boat looks like a lake or river boat to me. Short masts, (might be shortened to fit the frame), no keel like a canoe, but it does have a rudder. Not something a large company would have done, maybe for local use? I'm kind of grasping at this, but you might show your pics to a maritime museum. They could probably identify it much better than I could.