Since I began sorting nickels, I have been setting aside all problem coins, such as ones with foreign substances (tar, glue, misc adhesives, etc) and those with significant physical damage . I have some that look like someone was practicing with shears, some with holes, some that have had a grinder used on them, many different types of damage. I'm sure you have all seen coins like that. I keep all my nickels, but these are bad news, I have maybe 200+ so far. Not a big deal actually. Sensible thing to do is dump these at my bank and just get fresh rolls.
I see that many of you also keep all nickels. Do you do anything special with coins like this? Just wondering.
Mike