Side by side like this, the cleaned one stands out. But the cleaned one by itself with nothing to compare it to, and not blown up with full details on a computer screen, is not a dead giveaway in hand. Wasn't to me at least. Just putting it out there as a warning before someone else gambles with AU-58 money. FWIW, for a cleaned coin, it still looks good and I still like it. I haven't replaced it in my registry.
And there is a strong chance that it has been dipped. There is nothing wrong with that in my opinion, but a number of collectors don't agree with me on that. For the most part, about the only white silver coins that have not been touched, that are over 100 years old, are Morgan Dollars, which have spent much of their existence in bags or sulfur-free numismatic devices. Both of the quarters I posted earlier are graded MS-65, FH. The 1920 may have been dipped. I don't think that the 1929 dated coin has been dipped.
There is cheaper bullion coins if you can't do anything creative like a collection or jewelry where you can profit. Old albums you could populate , etc. Old SLQ in 20s-30s, with barely visible dates are sold in the dealer shop @8, or 7 if you take whole tube. Jim
I would very much like to have one of these but probably never will. To honor my parents, I've decided to buy a 1920 and a '24 and avoid the frustration and expense of collecting this entire series—although the SLQ has always been one of my favorite US coins.