<https://ansaldi.com/product/brass-knob-57/#product>
<http://schema.org/description>
"Brass Knob.\n\nMaterial Solid Cast Brass.\n\n\n\nAvailable Sizes:\n\n1-3/4\" Diameter\n\n2-1/4\" Diameter\n\n2-3/4\" Diameter\n\n\n\nAvailable Material: \n\nAntique Brass Finish or Polished Brass. \n\nAll Pictures of Hardware shown in Antique Brass Finish only."
<https://ansaldi.com/product/brass-knob-57/>