I got this insulator along with some common glass from one of my dad's old bosses. It is an Ohio Brass piece from 1939. I thought this was just a multipart at first, but I was wrong. I have never seen an Ohio Brass product like this before and was wondering if anyone knew anything about this type. It looks similar to a U-908, but that is a Jeffery Dewitt product.

I have been informed that this is the unreported U-909.;