I purchased the coins on the top to replace the coins on the bottom. The latest Hendin 1195 is an improvement. The latest Hendin 1197? Not so much. Although the ship's prow shows more detail—the EΘΝ is not as clear as on the previous. It's okay—I'll keep looking. I'm planning to keep all of them. Post coins that you acquired to replace earlier ones of lesser quality.
I recently upgraded what was the only Diocletian in my collection. I let you guess which one is the newest...