This animation is a row of the carriages that John V. Roos boarded. He visited as an ambassador in the United States that resided in Japan in August, 2009. I took this when going to Imperial Palace so that he may dedicate the credential to the emperor.
![駐日アメリカ大使信任状捧呈式の馬車列 Japanese emperor's carriages 1/2](https://cdn-ak-scissors.b.st-hatena.com/image/square/99d7750f740c61845b9fbbcbeafdb56a68f84907/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2Fg7WMJAAP9j8%2Fhqdefault.jpg)