While the coins in this article are a little bit older than yours, copper spots and an orangey look are quite ok for gold coins. That is actually preferable! Read the article here: https://coinweek.com/us-coins/original-early-us-gold-coins-look-like/ Over on the NGC forums, we had a bit of a discussion about it (with some really good posts): https://www.ngccoin.com/boards/topic/412305-what-do-original-early-us-gold-coins-look-like/
Love original gold whether crusty low to mid grade stuff or MS with copper spots and great color. Here's a video with Doug Winter talking a bit about the subject.
Just a few thoughts: se-collectibles, posted: "Copper spots aren't supposed to lower a coin's grade (Oh no? Where did you learn that?), but I wouldn't buy one with detracting spots." That should tell you something. Anything detracting on a coin will lower its MS grade. Falls under the category of EYE APPEAL. sinin1, posted: "I would suspect that a copper spot on a ?100? year old coin is a good thing for authenticity..." Actually, this comment was 100% correct until about five years ago! Up until then, no professional authenticators I ever spoke with had seen a copper spot on a counterfeit gold coin. EVER! Apparently, while it is still an extremely rare occurrence, this characteristic is no longer a sure-fire indication of authenticity. Leadfoot, posted: "Copper spots are a sign that the coin is both real and (to a lesser extent) hasn't been dipped recently. As long as they are not overly distracting, most collectors of gold don't consider them a problem." See above. Additionally, not all copper spots will disappear with a quick dip. The good thing about personal tastes is no one can disagree. If you like spots and nasty, dirty, stained, ugly gold, go for it!
Haha, the good thing about personal tastes is no one can disagree. If you like dipped out, stripped, doctored, white gold with no patina, go for it!
Haha, If you knew how to do the job professionally, THE COIN WOULD NOT LOOK DIPPED OUT, STRIPPED, AND DOCTORED, WITH NO PATINA. BTW, Just about everything you have written in your excellent book has been taught to seminar students since 1973. There still are some things missing in it; but you never claimed it was for anyone except beginners.