Cripes TC, you collect some interesting and varied stuff
Lol, you haven't seen nothing yet, i'm sure there's more to come.
It came from a local company, it wasn't based anywhere else though. I think they discovered an underground spring so set up a company to sell it. I wouldn't like to say the name of the company because it would reveal my location. Although i don't think many people outside of my town would know about it anyway. If you want i can send you an email.
I guess it could be used for anything really, tool holder, test tube holder, sausage holder.
Okay, maybe not the last one.
Rose, yes, the sprinklers were kept in the box as replacements. I guess for safety they would change them often or when there's been a fire.
I'll be honest here, i didn't actually dig it up but found it while i was Metal Detecting. It's still my favourite piece of treasure though.