So 1973 DDR? I keep all the 73's I come across and reference the ones I had and none are like it and I haven't seen another penny like this either - What ever it is I will be grateful for the knowledge letting -
Where do you see the Doubling? I see on the Obverse that it's a slight Misaligned Die Strike. This side
In your original post, the last two photos of the Lincoln Memorial are identical. Did you intend on using one of these photos as a reference?
I looked back on the full size photos? could that be the result of a dropped element? It looks like the metal flows from the Main column?