Help needed=Insulator related ?

I've been pouring through the books and can't find anything like what I just bought (what's new?) It's made from an 'ironstone' material and goes on a telephone/telegraph? pole. It's a 'robin's egg blue' approx. 10'high by 7-8'wide 'insulator looking' object with the following markings on the top: Auto Valve w/lightning bolt on each side of writing, A circle with a W in it which is underlined(Westinghouse I think) and the words Lightning Arrestor......I'm fairly certain WHAT it is (I'm no dummy) but, I'm trying to find out age,value,collector interest,etc. thanks in advance,

Doug W. ~>*) Big Fish EAT Little Fish (*<~

You're lucky, Doug. Mine's an ugly brown. I've found no collector interest in mine (I thought it was sort of artistic looking, but obviously much newer than the insulators that were heavily collected a few years ago.)

Robin's Egg Blue is nice - perhaps put it on eBay as a decorator piece?

Kris, I've had some Hemingray glass insulators and some porcelain ones also,but I've never had/seen anything this LARGE and shaped like this. I spent 2 hours at around 3:00a.m. this morning perusing an 'insulator' section on usenet and couldn't find this particular item.

Doug W. ~>*) Big Fish EAT Little Fish (*<~