Dunbar style mid century modern club chairs - James mont, gio ponti?

Can anyone help me identify these mid century modern chairs? They were purchased at an estate sale in a house that had other high quality mid century pieces (including Paul mccobb club chairs). I feel strongly these are by a good maker and seem in the Dunbar wormley style or even possibly Italian. I have searched and searched and cannot find similar chairs anywhere. Also they were reupholstered some time in the past so they may look a bit different than originally intended. Any help would be greatly appreciated. Thanks in advance.