Im 99 percent sure these were made by Schlage, He did receive the pat. For this push button lock in the 1920s , PLEASE READ, The set works, you turn the knob a bit and push the button in and turn it again to unlock, Please note in Pic # 8 there is A small chip, this is the NON BUTTON Knob on the set. Knob with the push button is fine, also 1 other knob and cylinder one of the 12 points has a tiny tiny chip very common for there, these knobs are extremely rare and don’t come up to often please feel free to contact me with any questions or for more photos thank you. The item “Rare Vintage Schlage Green Glass Door Knobs Push Button Lock Set 12 Point” is in sale since Monday, March 9, 2020. This item is in the category “Antiques\Architectural & Garden\Hardware\Door Knobs & Handles”. The seller is “dcmf16″ and is located in Crest Hill, Illinois. This item can be shipped to United States.