![What decade do you think this door knob is from? Building was built in 1940 but I doubt these are original. I wanted to clean them but not sure what material it What decade do you think this door knob is from? Building was built in 1940 but I doubt these are original. I wanted to clean them but not sure what material it](https://i.redd.it/what-decade-do-you-think-this-door-knob-is-from-building-v0-zti8qrcmd3ib1.jpg?width=3024&format=pjpg&auto=webp&s=d477f6f359f3f500a71164a14ba7d96d798c1005)
What decade do you think this door knob is from? Building was built in 1940 but I doubt these are original. I wanted to clean them but not sure what material it
![Upload photos of the vintage door knobs and escutcheons in your house - our famous Uploader is ON - Retro Renovation Upload photos of the vintage door knobs and escutcheons in your house - our famous Uploader is ON - Retro Renovation](https://retrorenovation.com/wp-content/uploads/2015/03/vintage-eschutcheon-birds.jpg)
Upload photos of the vintage door knobs and escutcheons in your house - our famous Uploader is ON - Retro Renovation
![What decade do you think this door knob is from? Building was built in 1940 but I doubt these are original. I wanted to clean them but not sure what material it What decade do you think this door knob is from? Building was built in 1940 but I doubt these are original. I wanted to clean them but not sure what material it](https://preview.redd.it/what-decade-do-you-think-this-door-knob-is-from-building-v0-jnnxlscmd3ib1.jpg?width=640&crop=smart&auto=webp&s=66965e1573f770300d424ca9f476c2d5486d5a2b)
What decade do you think this door knob is from? Building was built in 1940 but I doubt these are original. I wanted to clean them but not sure what material it
![How to Remove a Vintage Door Knob | Old Fashioned Classic Brass Door Knobs Plate and Cylinder - YouTube How to Remove a Vintage Door Knob | Old Fashioned Classic Brass Door Knobs Plate and Cylinder - YouTube](https://i.ytimg.com/vi/WMqqiMACiV8/mqdefault.jpg)