I have been hiding away doing a lot of things and this is one of them - I have been cataloging what coins I have in my collection. This is a rather niche market to collect and I just have to get my head stuck in this. Think it's a really really bad habit of mine. For those who don't know what overstruck means, it means using an old coin instead of a fresh new planchet to be struck as a 'new' coin. The result is that it may have traces of the old design under the newly struck coin. Here are some of my favorites: The rest of my collection can be seen here: http://gxseries.com/numis/overstrike/world_overstrike.htm Please feel free to show some of your awesome overstruck coins!
I can't say I collect them, but I do have an 1804 British Trade Dollar which was struck over a Spanish 8 Reales: