This section of the site needs new posts! So here's a link to an article (it's from my coin blog but does have good information and links to independent resources - one specifically for Aussie florins and how they can be expected to wear) https://pre1946silver.com/2022/04/24/avoiding-fake-silver-coins/ Hopefully it might be useful, you never know...
if you have a silver dollar thats been badly cleaned and you can sell wear from the clean would you say letting it sit around for a couple years or so to build up a natural body of dirt can help repair some of that damage. and which coin would be worth more, the badly worn cleaned coin or the dirty but more natural looking dirty coin? hope ive posted this in a suitable place.