We haven't found a great deal in our house since we started renovating it mostly, I suspect, because of gung ho renovations in the 60s and 70s. The most interesting thing I did find was a coin from 1892 that had, presumably, remained on its side between two cobbles in the path since it was dropped all those years ago - that really made me feel a link to the previous occupants. And it got me wondering...what's the most interesting thing you've found in your period property?