A historic stone mansion in Pennsylvania, built in 1925 and preserved in the Radnor Historical Society archives, is destroyed in an early morning fire, according to reports. The blaze is reported to escalate to a three-alarm incident and draws about 100 firefighters overnight. Details about the mansion’s exact location are not provided in the available accounts, nor are estimates of the total damage beyond characterizations that it is a high-value property. The sources also do not state the cause of the fire, the condition of any people on site, or whether any injuries are reported. Firefighters respond to the scene as the structure is heavily damaged, and the response continues through the night. The mansion’s listing in local historical records is cited to emphasize its historic significance, but no further information about its ownership or preservation status is included. Authorities are expected to investigate the cause and circumstances of the fire, and additional information may be released as assessments are completed.