Harley has provided H&R info, so I will chip in on the other revolver. It is a Pistola a Rotatzione (revolver) Modelo 1889 A. It was an Italian service revolver. They were made by Glisenti and Brescia, among others. The caliber is 10.35 Italian, which I think Fiocchi still makes. The Italians liked folding trigger revolvers, apparently for safety reasons. Value is negligible, but they are interesting guns and reasonably well made. Interarms once had so many they could not sell, that they made them into table lamps; I have two of them.