This is the grill ONLY, for a vintage Nutone Model 8170 house vent fan. It is not the whole fan. Just the interior facing vent. It is MINT, looks like. The day it was made condition. No dents, no pitting. Truly gorgeous, shiny and new! My guess is this is at least from the 1930’s, maybe earlier. It was installed in my home. Shortly after house was built in 1934, it was walled in and never used. It feels like aluminum, so obviously no rust. This is ideal for a historical renovation of hi end custom project. I’ll deal with that for you. Hope this goes to a great restoration!