Unusual Turn Of The Century Photo Postcard / Roller Polo Team

Turn of the century photo postcard. Unknown whether the team was called Harrison's Polo Team, or if one of the players was named Harrison, as written on the back. This is one of the most unusual roller polo photos as the goalie's leg pads are riveted steel. I've never seen anything like this before.
 

                                                          Close up of the metal leg pads.