These bouts of light, technical pugilism sparring are also a good approximation of Bartitsu boxing as alluded to and partially described, but unfortunately never detailed, by E.W. Barton-Wright. Note especially the use of “chopper” (hammerfist) punches and destructive elbow guards.
For further technical details on the speculative reconstruction of Bartitsu boxing, see The Bartitsu Compendium, Volume III.