The R. H. & Co. No. 71 insulators are white porcelain with a metal base, making them highly sought after by collectors of vintage insulators. The combination of porcelain and metal materials gives these insulators a unique and attractive appeal, adding character to any collection. With a focus on quality craftsmanship and aesthetic appeal, these insulators are sure to be a standout piece for any collector looking to add a touch of vintage charm to their collection.

I was told they were insulators , I am unsure but they are very unique.