Countries always. The condition I would keep on a spreadsheet. Metal would not matter.
But - I am the worst collector - does not trouble me to put all sorts of coins in an old bread bag,
or an old ice cream container, et cetera. A few weeks ago I went into a shop and they had a
bargain area for out-of-date items; I got biscuits, crisps, drinks, plus some Ferrero Rochet.
They were nice, and when empty there is a bonus of a sturdy clear plastic box. I made these >
1.

2.
3.

4.
All made just now, at night, so some reflection on bags.
1. All sorts, on my left as I type this. Anything that has come in recently goes into the pile.
Whenever I get time I move them into a cardboard box to make way for more coins. So there
is packages the coins came in, or an ice cream tub, and old bread bag and so on. Plus some
self-seal bags if anything I receive did not already come with its own paper envelope or bag.
2. I opened the bread bag and tipped out the contents.
3. Same with an ice cream container.
4. While looking in the bag I found a self-seal bag with Unknown written on it.
I guess at the time some could not be identified - now today I know what some are.
Something to look through one day - if I ever get the time.