A Chicago Dragon

Here is a cover from the Chicagopex Stamp show in 2005 - it honored the 70th anniversary of transpacific airmails with a dragon postmark. This also has a small dragon cachet for Dragonair, presumably the Hong Kong based airline.

A Milwaukee Dragon

This cover is from a Stamp Show - Milcopex 2003, held in Milwaukee, Wisconsin. It feature a dragon cachet & postmark, as well as one of the lunary new year stamps from the United States.