This is a lenticular postcard made in Japan by Wonder Co. This type of printing is also called "3D." There are two images. Tilting the postcard changes the view from the first image to the second.
POSTCARD SCAVENGER HUNT??
I haven't decided whether I will have a Postcard Scavenger Hunt for August. If I have one, it will be posted next Thursday or Friday. I have thought of several topics, but haven't chosen one. If you have any suggestions for topics, please leave a comment on this post or the main Postcard Scavenger Hunt announcement post.