An early Great Lakes Anishinaabe carved serving bowl in original surface.
Formed from the trunk of a red maple tree, the profile is of a standard utilitarian form with a deeply tapered body terminating in a smaller, sharply cut foot. A hollowed interior gauge carved by hand with the use of a scorp tool. Thousands of fine rigid tool marks are evident and raised, evidence of intense hand manufacture.
A small section of tree bark has been left on the exterior, likely due to producing a bowl from a 23" thick tree and being of a certain capacitive size while maintaining the required thickness to preserve structural integrity. 
Other surviving examples with flat rims and sharply tapered bodies identical in manufacture survive in the National Museum of the American Indian, collected directly from reservations or by field work by notable anthropologists and coming directly from Ansishinaabe specific tribal areas. 
Survives in an overall excellent state of condition, less a small shrinkage crack (shown) and being consistent with age, structural design, and use. 
A wonderful example of handcraft with impressive and simplistic form. Scarce in size at an inpressive 23" in diameter with a full inch of grain shrinkage. Great Lakes Anishinaabe in origin, possibly Parry Island, ON. Ca. 1750-1830. 23"W x 6"T.