this is fascinating for anyone with Dairy Farmers in their ancestry, I've found a bottle for my great uncle's dairy farm in Mytholmroyd!
http://www.ebay.co.uk...sid=p3984.m1423.l2654
I think it would be worth going for, I'm going to double check but I think he was the one who didn't have any children, so no descendants, his farm was at the bottom of the track that led up to the Farm I was born on. I remember when we visited in the 1960s that there was a huge stone milk churn plinth at the entry to the lane, it's probably still there!