Extremely Heavy Military Signal Cannon Circa 1870

19th Century military signal cannon with touch fuse hole and one and three eights inch bore. Barrel is mounted to a period carriage with heavy irons, bolts, rings, brackets, etc.. Carriage is set onto four wheels. Barrel is twenty one inches long by four inch diameter at its widest. Very historic relic. This is not a weapon and goes not shoot projectiles. It is for signaling only. Circa 1870