Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: VINTAGE K-645 FRENCH PROVENCIAL Furniture Pulls KEELER BRASS C-C 3 1/2"
Product description: The pull size is 7" wide x 2" high Screw holes are 3 1/2" apart. It protrudes 1" from the surface when mounted. I'll include new screws with the order. They are new but not in the original packaging, they've been in storage for years. It is a very ornate brass handle with different variations of darkness in the handle. They were sold as handles for a bedroom or dining room suit in the mid-century era.
Product feature: Item in United States, high quality., GORGEOUS HANDLES
Product brand: New
Target attributes: Knob Shape
Answer: attribute: knob shape
value: None
source: None