I've had this coin for years and I had it labeled as 1922 G, but then I scanned it and looked at the photo and I said, that's not a G. But I don't know what it is. It doesn't look like damage to me. So what is it? If you don't know, the mintmark is under the wheat.
I think that's a Gothic script E for Muldenhütten mint. The Numista entry has someone's notes comparing the E and F mint marks. (Image not mine, from link)