Interior spaces back in 1930. All very cozy looking but that makes sense as they are taken from a radiator cabinet catalogue put out by Tuttle and Bailey Manufacturing who have been in business since 1846. They are a leading manufacturer of commercial grilles & registers and various HVAC components and are located in Richardson, Texas.

Office in the Bronze Department of The Gorham Company, New York, with Tuttle and Bailey Radiator Cabinets, Longacre Style. Grilles are standard 1/2 inch square mesh only. For Commercial Use. Image 2 of a commercial catalogue of Radiator Cabinets published by the Tuttle and Bailey Manufacturing Company in 1930. Columbia University Library Collections. In the public domain due to age. via https://archive.org/details/tuttlebaileyradi00tutt/page/5/mode/1up

There are other old catalogues from Tuttle and Bailey on the Internet Archive but this is the only one showing their radiator cabinets in rooms. You may visit them online here https://www.tuttleandbailey.com/ I had various apartments with radiators back in my apartment renting days but I can’t remember any radiator cabinets over the radiators. But my grandparents’ house built in 1926 had at least one in the dining room and probably more than one in the other rooms. Where I live now just has boring baseboard radiators which work great but aren’t as pretty.