Unique collection of chips sold on eBay

The eBay online auction sells a unique collection of chips - Platinum Collection, numbering 6,800 copies, which was collected over a decade by one enthusiast. It is noteworthy that the auction itself will last 10 days. Collection starting price - 1,000,000$, but experts estimate this lot at $ 2-3 million. Some copies are subsidized in 1940.