Chateau Laurier, Ottawa, Canada. The hotel was built by the Grand Trunk Railway in downtown Ottawa and was completed in 1912. This knob is from original 1912 portion of the hotel, as shown below in a 1912 Corbin advertisement fromArchitecture and Buildingmagazine. The 1929 addition used a different CL monogram,P-41260. Click on each photo below to view additional images and information.