17th Century windows were made from Oak and were left unpainted and never stained. 19th Century windows were made from Softwood and painted. So, Residence 9 offers 3 different Oak finishes. Silver Oak simulates the appearance of Oak when exposed to sun and rain over time (but without the splitting, shrinkage and warping). English and Irish Oak look like Oak when freshly installed. This property isn’t from the 17th Century but it does however show the Irish Oak finish beautifully.