The Posthorn is probably the most iconic of Norwegian stamps. It’s gone through multiple design, color and print changes over its 140 year run. It’s fun and fascinating trying to identify and categorize all the different variations. A few are hard to come by in mint/unused condition and some of the plate varieties are so rare they are out of reach (only a couple found). Hard to believe it’s the longest continuously running stamp design in the world. Other countries such and Denmark and Iceland also had their Posthorns, but discontinued them after a few years.