I collect overdates; here are a couple of my recent finds. Sweden 2 Öre 1871/61. Most of the underlying 6 is polished away, but the top of the 6 protrudes from above the 7. This overdate is common. Here's a Sweden 1 Öre 1865/4. The clearest diagnostics are the lower serif and the upper diagonal stroke of the 4 (arrows) Krause puts a modest premium on this overdate--which also makes the hunt fun!
