Velo Orange Grand Cru 50.4mm Outer Chainring: 44t (Almost New, take off?)
This is a US-made, modernized rendition of the famous TA Pro 5 Vis "Cyclotouriste" and Stronglight 49D 50.4mm BCD chainring. They're favorites of randonneur and cyclo touring riders. They look like the classics, but feature modernized details like shifting pins/ramps, thicker (less flexy) build. They're compatible with 5 speed through 10 speed drivetrains.
This looks like it's been installed but not ridden. No tooth wear, but the slightest signs a chain has touched it's teeth.