[fred cook]

Since she already has one of the larger Colt revolvers, why not stick with the brand. A Colt Detective Special or Cobra (same gun with an alloy frame) or maybe a Police Positive would do the trick. These guns can be found with 2" - 4" barrels and chambered to use the .38 Special cartridge. It's hard to beat a nice Colt! If she has really small hands, look around for a Colt Pocket Positive in .32 S&W Long or .32 Colt (basically the same round but the Colt loading has a better bullet). The Pocket Positive revolvers are quite small and easy to conceal.