Precious Metal

Kitco online store

JM Bullion

ITM Trading

https://www.apmex.com/category/11902/20-saint-gaudens-double-eagle-coins-1907-1933

https://www.moneymetals.com

https://findbullionprices.com

https://thecoinshoppe.ca

Reddit Channels

https://www.reddit.com/r/Pmsforsale/

https://www.reddit.com/r/Gold/