The patina is gorgeous…. Its real patina that is very difficult to do. It can be handled and washed without affecting the patina. The diameter is apx. 11.875″ the shaft hole is bored for a 5/16″ shaft. It is well balanced and runs quite nice. The item “MESTON Fan Blade For antique meston fan” is in sale since Monday, February 24, 2020. This item is in the category “Collectibles\Kitchen & Home\Electric Fans”. The seller is “genesisrockwall” and is located in Richardson, Texas. This item can be shipped to United States.