I recently picked up this buckle marked 20.H.4.1. The description in the listing stated buckle from HR 20. As I have an OR busby from that regiment I bought the buckle. As you will see the item is infantry style not mounted troops. However, HR 20 fought as dismounted troops during the war (thanks Tony!) so this would explain the issue of this infantry style buckle to an H Regiment. I am not a buckle collector....I bought "the markings" so any comments/expertise would be much appreciated. The piece seems a bit smaller than normal and measures approx. 6.3 cm X 4.9 cm. The prongs and bar they are soldered to are steel.