Mail art from the past

I found an old painting in the studio, while looking for something else. It was stamped and addressed but never sent. I don't' remember why. I had done a series of these to send to a small group that got into mail art. I received a hair brush, a size 10 tennis shoe, and other things. I did't send strange things just to test the postal system as some did, but instead sent pieces of my art with the addresses and stamps on the image side. Here's a little sample.

Now that I found this, I may just want to do some more of them.... LOL