metal ring for tying horses found on a wall in milan's piazza dei mercanti

amphibian wildlife reptile serpent carving animal lizard number turtle snake metal iron font wood soil hand aged ancient animal antique architecture background biscione brick wall brown building chain closeup design detail exterior grunge historic horse hitch ring iron head medieval metal object old ornate outdoor pattern piazza dei mercanti retro rough rusty security serpent steel stone symbol symbol milan texture textured travel vintage wallpaper