Marked Yale Chicago. 10" wide at widest. 9" high. Bottom opening is 4" OS. and top is 7 5/8" outside. any one ever seen anything like this?
I found this add in searching. Nov. 1911 popular Mechanics. Looks the same? https://books.google.com/books?id=_t0DAAAAMBAJ&pg=RA1-PA129&lpg=RA1-PA129&dq=yale+hollow+wire+lamp&source=bl&ots=HhJm2MwZ2q&sig=5SbBZCbDg0g3iTJorJzrBno2OD0&hl=en&sa=X&ei=85wzVau5EInBggS4noGICw&ved=0CDQQ6AEwBA#v=onepage&q=yale%20hollow%20wire%20lamp&f=false