Victorian silver chunky horse shoe and nail brooch 1897

Victorian brooch that has a horse shoe in the middle with a nail going through it and they have a copper colour to them just like the end parts... that is fully hallmarked with the date letter putting it at 1897....the makers are S.BROs...birmingham hallmarked...the brooch measures approx 48mm across..it is quite a chunky and sturdy brooch and in nice condition for its age...the detail is really stunning