I grew up with that type of gun,and shot hundreds of times.Jim is right on they had many names and that H&A was one I had.never had one blow and I had quite a few in the 50s,and shot them.32 rim was 30 cents a box of 50.and 22 shot 15 cents.many people thaought of them as perfect for defense.many police carried 38 S&Ws in H&R and IVERs.