Each is 1.25" and neither has a back paper or a maker name. The Crow Elkhart was in production 1914-1928 and this button appears to be from the earlier years of that span. Trivial and normal reverse oxidation with the celluloid NM displaying Mint. The second button is related to the first. Small text on this reads "Compts. Of Canadian Crow Motor Co. Ltd.-Mt. Brydges, Ont." This Canadian company was associated with the Crow-Elkhart Motor Car Company. It existed in Ontario producing cars 1915-1918. Button has numerous but tiny grey dots mostly on the outer edge with just a couple on the center background. Still with full gloss. Fine. A rare pair.