I received this holophane incandecent fixture on Facebook marketplace for $15. It’s hard to make out the name of the company on the tag but being that it’s incandecent, I would imagine it’s from the 50s or earlier. I added a picture of the old worn out label on the item. It’s really hard to make out. (Picture on Imgur link).  It’s not too big. Probably 10 inches long and 8 inches high but the glass is so thick. Probably about 3/4 inch thick. Can someone help in figuring out more about this item. I would love to know. Thank you!  (more pictures at this Imgur link: https://imgur.com/a/micWEPa )

The fixture was made by Holophane . I'm not sure on the model # . I think these were made form the 50's to the 70's .

If it's for 150W incandescent then it's a Holophane 415. If it's for 200W incandescent, then it's a Holophane 420.