Link: [Wiki Page]
The second design is an old rejected texture of the Observer from this tweet.
Other search terms: Observer Block - BUD Block - Block Update Detector Block - Minecraft Pocket Edition 0.15.0 - Minecraft: Pocket Edition 0.15.0 - Alpha 0.15.0
How to Print?
1.Click on the papercraft design image.
2.Make sure it has not been resized by your browser (you might need to click the image again).
3.Print using your browser's Print function.
