Please identify Ebay item 2575106542

All

I have an item on Ebay that I think is not identified correctly. Ebay item
2575106542.  It has a B&L label on it. Another has thought it is the remains of
a Metallurgical misroscope. I thought it was an Optical bench. And after much
thought I decided to ask here. 

Thanks in advance
Bob  AZ