So Emperor Kangxi had beautiful snuff bottles made for himself and his whole family.
Over the last 70 years innumerable bottles have been blown for sale in gift shops, museum shops while others have been make by unscrupulous scoundrels out to make a quick buck from someone elses ignorance or gullibility.
Sometimes even the experts get fooled, but with a little practice and knowledge most collectors can protect themselves from a foolish investment in a bad piece of glass.
Identification & connoisseurship of glass is a skill which takes time and patience to acquire.
For every rule there seems to be exceptions whether it be color x is more valuable than color y or glass of a age x is more desirable than another.
Only a few years ago bottles in these two categories rarely brought more than a few dollars but as interest in these categories increased so did the price. Whenever demand increases or outstrips the supply of a collectible, the price goes up.
Digger Odell's Antique Bottle & Glass Collector Magazine Price Guide Series has volumes different categories listing thousands of antique bottles that have sold at auction.
It's not clear how snuff, what we know as powdered tobacco, first made it to China in the early to mid-1600s.
It may have arrived via traders from Portugal or Russia, or it could have been brought by invading Manchus.
All bottles made before the turn of the century are partly or completely hand blown and formed.