A BIG Thank you to all that emailed and helped - now that I know where to look found the embossing others pointed out to me and it's a set of BROOKFIELD CD 145 JAN 25, 1870 - The are now listed on my eBay site as not sure how to price things posting for sale on here. Thanks again everyone - if bidding on eBay let Me know you're and ICON Member :-) Thanks again one and all. Norm

This insulator has no embossing on it as to name etc - there is a "3" embossed on the dome. Am not a collector and still doing research but closest comparison I can find is a Hawley Beehive or maybe a Hemingray 21 or ??? Picture is of two of these - one in mint condition the other in good to very good. Thanks for any help on this. Found a CD ID list somewhere but it has no pics. Watch for my LARGE LOT SALE notice - someone is going to be very happy :-)