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Post office might have some small gold coins but basically all the coins they will carry have a super high premium limited edition type deal, you want to look for a bullion dealer if you Canadian silvergoldbull is pretty good online store for silver, gold and platinum

I will check out silvergoldbull. I feel I should use everyone at least once to see which ones have better terms, shipping, etc.

Best places are the larger sellers, most times...
Check my post below!