<https://antiquehardwaresupply.com/products/2-3-8-inch-solid-rough-iron-octagon-cabinet-furniture-knob>
<http://schema.org/mpn>
"LGCBK783"
<https://antiquehardwaresupply.com/products/2-3-8-inch-solid-rough-iron-octagon-cabinet-furniture-knob>