A Customs Pump bottle is a high end, limited edition bottle that is manufactured for one purpose only - to be displayed and sold at an auction. Its source of production is the country in which it will be sold. Usually these bottles are manufactured in China and Korea. Although their production may be cheap they do not use any low-cost or counterfeit parts in their manufacturing process. In fact, in some instances, companies actually pay counterfeiters to duplicate their genuine customs-pump bottle.

In some rare instances, a company or collector can stumble across a bottle that was created by a real manufacturer and will then pay that original manufacturer a hefty sum in return for the right to display that bottle. This occurs less frequently than you might think because these special bottles are so hard to find, typically only being found in high end auctions. So if you happen to come across such a bottle you may want to consider buying the rights to own it rather than the actual bottle.

If you do find a bottle like this you will not actually be able to resell it as it would no longer have a market value. You may be able to trade the rights to the bottle for a fair market price. Once you have acquired all of the information about the bottle including its unique production method, you can usually resell it for a profit. The more knowledge you have about rare items such as this the better off you will be in the trade.
https://www.yc-packaging.com/product/pump-bottle/