If you go to www.vamworld.com and look under 1921-D you can look up the variety to see if it is listed. It is a chipped die. It may not be valuable, but it may be collectible. The condition is an issue for value, since it isn't uncirculated. You are looking at around $14 and up.
1921 D mint. I looked on it . I've noticed the die crack on it (vamworld) but still haven't seen anything g about the 2 oddity.
You may have a new VAM. Post the picks on the vamworld forum and see if the group there can find anything.
