Hi there. I am hoping someone can help me. I live on site of an old dairy farm and have found a cattle ear tag. I’m not sure if it’s from the old farm if just a modern day one that’s fell out of a straw bale from the the horses. I’ve looked online and it says tags should have a six digits animal code but this one only has 5 digit which makes me wonder if it’s an old one. Photo attached. It reads: uk (crown symbol) k5632 o1381
Any ideas much appreciated! Thank you