Our house was built around one hundred years ago. I am certain that no one has refinished the woodwork in all that time. Until now. This is the only window that opens in the house. The cord that was connected to the sash weights on the other four had rotted or been cut. I do know how to replace that cord (AMHIK) but we decided that we had enough ventilation with the screened front door, this window, and the three kitchen windows. So we sealed the other four with caulk when we moved in nineteen years ago. Oil wasn't cheap then and it isn't cheap now. The large plate glass affords lots of light and lots of heat loss. Even so, I will miss these windows.