Mint sets in plastic folders

[trout]

I have had these in acetone for 3 days.
The "Slime" has gone But you can see where it was :dash1:
These plastic Mint folders are death to coins.

[runway]

Certainly always remove pre 1984 mint set in these folders

[JeffH]

Certainly always remove pre 1984 mint set in these folders

Too late now but remove them anyway to prevent further deterioration.

[Fulvio]

Certainly always remove pre 1984 mint set in these folders

Too late now but remove them anyway to prevent further deterioration.

Remove the coins, and seal both the packaging and the coins in separate bags. Don't throw the original packaging out.