Operating out of Liege, Belgium, HDH, also known as Henrion, Dassy & Heuschen, made a name for themselves with high capacity revolvers, with some monster models using two barrels and 20 chambers. Forged blade sight on the barrel, with a notch rear sight on the frame next to "MANUFre D'ARMES/ H.D.H. LIEGE". Cylinder is nearly 2 inches in diameter, with scallops between the chambers and the metal between the axis and chambers removed to save weight. Belgian proofs are present on the right side of the barrel and frame and rear of the cylinder, "HDH" and "CAL.22" on the right and left of the frame. Checkered hammer, middle finger rest on the trigger guard, swing out ejector, and checkered ebony grips with lanyard swivel on the butt.

Excellent, with 95% of the original blue finish. A bright gray patina is visible on the high edges, mixed brown forming on the cylinder and some light handling marks overall. A gray patina is starting to form on the grip straps, with the rest of the frame showing attractive bright and vivid colors. Grips are very good, with a few light scratches. Mechanically excellent.