What is the most expensive Persian rug?

Related questions

1. Are Persian rugs a good investment?
2. How long do Persian rugs last?
3. Why rugs are so expensive?
4. What is a tufted rug?
5. How much should a rug cost?
6. Do I need a rug pad on carpet?
7. Can I use a rug doctor on an area rug?
8. Can a rug be too big?
9. How do I choose a dining room rug?
10. How do you layer a rug?

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15. #antique