These are from the IMAX movie "The Majestic White Stallions" which I believe came out in 2001.
The long rein performance was done by Andreas Hausberger and Conversano Isabella. You can see Kottas throughout the movie and he definitely has gray hair. I think he retired a year after the film came out.
Thanks for the heads up. My monitor (and my eyesight) are suffering the ravages of time. I did some further research and that DVD appears to be available in the US from the Lipizzan Association of North America.
The two SRS videos I have are VHS format and I think from about 20 and 30 years ago respectively. There was also a film "Symphony In White" that aired on A&E Network back in the early 90's but got caught up in a copyright kerfuffle. Hopefully it's sitting in a temperature-controlled vault somewhere, because it was very well done.
The inherent vice of Capitalism is the unequal sharing of blessings. The inherent virtue of Socialism is the equal sharing of miseries. Winston Churchill