This experimental revolver functions in a unique manner, utilizing designs originally conceived by Argentine captain Antonio Garcia-Reynoso, manufactured and patented by Henry Pieper of Liege, Belgium; Henry Pieper was granted Belgian patent number 109,384 on April 5, 1894 for this revolver design, as well as German patent number 81,930 granted May 27, 1894. Loading occurs in a few ways; one of which involves from the top opening of the side mounted magazine, with a spring-loaded follower inside and a spring-loaded catch at the top that keeps the cartridges retained inside. As each round is fired, the round in the chamber to the right of it is automatically ejected, and the "on deck" round is fed into the chamber to left of the fired round from a fixed five-round spring loaded magazine mounted on the left of the frame. The cylinder itself holds six shots, and is able to be loaded from the right side opening. When fully loaded, the revolver has an eleven shot capacity, and the first six shots are able to be fired from the cylinder with the disconnect switch located behind the box magazine engaged to avoid double feeding. Once all six shots are fired out of the cylinder, engaging the switch for the box magazine allows the next five shots to feed. It is chambered for use with a 7.65x30mm Reynoso (also referenced as 7.8x30mm Reynoso) rimless gas sealing cartridge with a tapered case and fully enclosed bullet, similar to the designs of Nagant and the 8mm Pieper cartridge used in the Pieper revolving carbine. When a round is put in line with the barrel, it is pushed forward slightly when the hammer is cocked in order to create a gas seal. The top strap is marked "H. PIEPER BTE LIEGE." The rear cylinder face has a Liege proof, with various other Belgian proofs. Information and photographs of this exact revolver can be found online at https://littlegun.be/arme%20belge/artisans%20identifies%20p/a%20pieper%20h%20reynoso%20gb.htm in which the article states that no other examples of these revolvers are known to be in existence.

Fine, retains 70% original blue finish with scattered handling marks, some patches of light pitting, and mild brown freckling on the balance. Grips are very fine with a few light handling marks and defined checkering. The cylinder has modern drilled holes and added pins blocking loading of each of the chambers, otherwise the revolver functions fine.