RE: Do you have a trusted source for the small silver coins?
I trust jmbullion.com. I’ve made some large purchases from them (poor mailman) that arrived in tact. They have a lot of small coins down to the 1/10th ounce level. But, the smaller coins carry a premium.
1/10 oz silver
https://www.jmbullion.com/search/?q=1%2F10+oz+silver
1/4 oz silver
https://www.jmbullion.com/search/?q=1%2F4+oz+silver
You don't want to have to 'cash in' a silver bar, or a gold bar, for a loaf of bread.