I noticed this thing on the exterior of a charming little 1941 house we're hoping to win (everything involves a bidding war around here). My phone's camera wasn't able to capture it, but it says "Nutone" on it in raised lettering. I estimate it to measure about 12" square. I can't reach it without a ladder, as there's shrubbery below it that impedes access.
This is near the top of the kitchen's exterior wall below the eave, and although it appears to be hinged at the top, it seems too big and heavy to be a flap for an exhaust fan. Inside the kitchen it's covered by a cabinet. I don't know if the stove was originally located on that same wall. The kitchen was remodeled a few years ago and the cooktop and oven are on the opposite wall from where this thing is located, and there's an exhaust over the cooktop that vents through the roof.
Any ideas on what purpose this might have served?

This is near the top of the kitchen's exterior wall below the eave, and although it appears to be hinged at the top, it seems too big and heavy to be a flap for an exhaust fan. Inside the kitchen it's covered by a cabinet. I don't know if the stove was originally located on that same wall. The kitchen was remodeled a few years ago and the cooktop and oven are on the opposite wall from where this thing is located, and there's an exhaust over the cooktop that vents through the roof.
Any ideas on what purpose this might have served?
