When I started to buy a little gold, there was a sharp irreconcilable difference of opinion on whether it was best to buy bullion/modern coins with essentially no premium to the metal price or to buy the pre-1933 coins. Many of the opinions, oddly, seemed to align with what the authors were selling.
But I never got to anything like a consensus. All that said, the pre-1933 $20 gold pieces even in nice grade sell for a relatively low premium to the melt price compared to the fractionals, and they are beautiful.
Some of the silver coins are beautiful too but of course there the value is nearly all numismatic.
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My avatar is a sketch by my son who is an art school graduate. Some of his sketches and paintings are at
https://www.jamesspaethartwork.com/
He is available to do custom drawings in graphite, charcoal and other media. He also sells some of his works as note cards/greeting cards on Etsy under JamesSpaethArt.