The most valuable thing that was left in a house you purchased?

[Jason Lavender]

I recently bought my second house to flip and there was usual junk left, but also a brand new carpet cleaner machine. So that got me thinking what was the most valuable or strangest thing you have discovered in a new RE acquisition? Funny story the first house I bought and am flipping one of my guys found a gold bracelet nestled in the window and I said throw it away but he insisted on keeping it,of course come to find out it was 14k gold made in Italy. I told him it was his Christmas bonus lol