Here
Watching.
I think there might be a thread elsewhere on the 1905-06 experimental cavalry and small numbers in trials out that away.
Then the 1911, predating Patton's 1913.
The thing is This room has always been, quite strictly, pre 20th century discussions.
I could link all the stuff from the USM forum but little of it would be my study. Two strokes down now, I have to rely on keywords, searches and the thoughts of others to retrace my recollections
Cheers
GC