While visiting Mission Road Antique Mall a couple of weekends ago, I spotted these lovely antique calico buttons in a showcase. I see this type of button now and then, but not very often and they are always rather expensive.
If you happen to be in Kansas City though, visit the Steamboat Arabia Museum, where you can see thousands of these beautiful buttons ~ and learn a bit about some history as well. The photo above was taken at the museum ~ click on the photo for the source.
Don't know that I have ever found an entire card of calico buttons ~ thanks to the internet though, I was able to find these and an interesting article about calico buttons. Some day, when I am more organized, I will take a few photos of some of the calico buttons I have found over the years ~ I have some great stencil buttons too.