In general terms, there are two types of doubling.
The most common (and of no particular value) is 'machine doubling.' Basically the die kinda "bounces" on the coin, making two (or more) impressions.
The valuable sort is a 'double die' where the die making the coins has the doubled image on it, so every coin it produces has the doubled image.
Pictures would help to determine which sort of doubling you have on the 1943 cent. It's most likely Machine Doubling, but maybe not.
The 1981 cent has probably been plated, or painted, or something. There are some more exotic possibilities that would add to the value, but they are not very likely. Again, pictures would help to make that determination.
Another possibility is to show them to a coin dealer and see what he thinks.
The most common (and of no particular value) is 'machine doubling.' Basically the die kinda "bounces" on the coin, making two (or more) impressions.
The valuable sort is a 'double die' where the die making the coins has the doubled image on it, so every coin it produces has the doubled image.
Pictures would help to determine which sort of doubling you have on the 1943 cent. It's most likely Machine Doubling, but maybe not.
The 1981 cent has probably been plated, or painted, or something. There are some more exotic possibilities that would add to the value, but they are not very likely. Again, pictures would help to make that determination.
Another possibility is to show them to a coin dealer and see what he thinks.






















