This is not it but might give people some research ideas...I'll keep looking...
Zeugitania, Carthage. Ca. 300-264 B.C. Bronze shekel.Wreathed head of Tanit left, wearing earring and necklace / Horse's head right, star to right. 20.7 mm, 5.47 g. ref: MAA 57a; SNG Cop 144. VF, black patina. Ex Malloy XLIX, 227. #CG2091: $299
Given the crudeness and thinness of the lines, I think its an Indian head penny turned "hobo nickel". It looks like a very faint Indian on the side of the horse with the Indian's eye above and slightly forward of the bridle ring. Possibly the remnants of a date 90 degrees to the left of the bottom of the horses neck....... on another note it was clearly made by someone with far better windows paint skills than my own. ... Some people would look at me and think I am an adult, others will see me with a crayon and think other wise....