If the first coin is 1939, probably a "Doubled Monticello", which is a nice coin and worth something, even in low grade.
That looks to be a die chip next to the F.G. (Designers initials). It would be an minor error and up to you to keep or spend.
It doesn't look like the DDR to me - that one is pretty strong ("naked eye visible") with clearly split serifs even in low grades. I second @tommyc03's opinion.
It looks like a really worn die with some circulation wear. I'd think the die chips would be pretty common with such a worn die. Pretty common for Jeffs, which is what makes the nice ones truly exciting to find.
There is no extra metal on that coin. The planchet weighed exactly what it should. The die put metal in a place that you don't expect it to, but the weight is the same. "Extra Metal" implies some additional piece attached to the coin, or an overweight planchet. And yes, that is struck from a very late die state - it is worth exactly zero premium, and is fit for spending.
