The rod in the middle does not exist.

2. How many, 7 or 10. Count at the top and then at the bottom.

3. Is the door open to inside or outside?

4. Round or square?

5. How many, 3 or 4?

6. Is this just one?

7. Rare construction.

8. The centre beam disappears, look from left to right

9. 2 or 3?

NO I don't know how they work but I think I need new glasses!




