82 copper small dates??

[Rob1983]

Spoiler

 

Any help would be appreciated,yes theve been weighed they are copper. All weights were 3.0-3.1thanks in advance 

[MarkFeld]

I believe those to be Large Date examples, based on the closeness of the "2" in the date to the rim. Here is an article with pictures: http://www.numismaticnews.net/article/rare-1982-d-small-date-copper-found

[DWLange]

The first three coins are Large Dates. The last one is a Small Date. With the corrosion it's more likely to be coated zinc than bronze.