In these videos below you can see the condition of these 1917 Tudor Revival casement style window sashes, vintage brass hardware, original caming and single strength glass panes; aka leaded glass quarrels.
These windows will need to be completely rebuilt as restoration efforts are non-existent; too many years of neglect and water intrusion has led to rot and total component destruction. Additionally, the root cause of this demise is lack of any maintenance, improper glazing repairs by unskilled tradesmen and women.