There's definitely film footage of the IF dancing on a yacht (though it may have been the Polar Star), in 1912, I think. If it's the clip where the officers & IF are dancing in a circle, and OTMA are wearing white dresses with wide-brimmed hats decorated with flowers, you can find it on the Last of the Czars video that the Discovery Channel did. When I get home, I'll check and see if it's one of the film clips I've downloaded onto my laptop.