This postcard really presents significantly both of Holland's symbol i.e. Tulip and Windmill. When I was a kid, I thought the windmill was only beautiful, but later I learned that a windmill is a machine that is powered by the energy of the wind.
More info about Windmill is here, and thank you to Andrea who sent this extra long postcard to me. This should be call panorama postcard with length of 25 cm.