In our small town we have a used book store that is pretty good. Every once in a while you luck upon a great deal. As you may have noticed in a previous post we studied Da Vinci in our last artist class. This kit has three activities in it and I picked it up for .99 cents. Thats right .99 cents! It was still in plastic but the box was crushed. All the pieces were there and Grace thought it was great. We have only finished one of the activities which is the flying machine in the picture but will work on the others soon.