Knowing how to spot valuable antique china marks and identify the patterns ... In many cases, there may be more than one stamp on an item, sometimes indicating where the piece was manufactured ...

For over 180 years, we’ve been collecting stamps, and philatelists have put a high price on the rarest of the rare stamps ... several stamps produced by the Chinese military, but the blue ...

Another stamp from China that commands thousands ... Black,” fewer “Two Penny Blues” were printed, making them rare and valuable among collectors. Well-preserved examples of this stamp ...