A "ladies gun" of the era, particularly one given by a man as a gift, would be a nickel plated, pearl handled .25 auto. Everyone knows that a woman can't handle anything more powerful, anything bigger isn't going to fit in her purse, and she's just going to use it to "scare off" the bad guys anyway.
Also women are only going to want something shiny and pretty. It would be an insult to give a woman a blued gun. My vote is for a nickel plated, engraved Baby Browning with real mother-of-pearl stocks. That's the closest thing in the firearms world to jewelry, and would go well with a woman who drive a Cadillac.
Or so would be the thinking of the time.
I went online and did some research on this gun. If I change the story, this gun could have a history of being used in the French Resistance movement, perhaps by her mother who fell in love with one of the liberation US soldiers. It was referred to in some articles as a much loved weapon due to its ability to be easily hidden due to its size. Apparently the Baby Browning could even be hidden in a cigarette pack. I could not dig out the exact size and weight, if any one could supply that I would be appreciative.
Thanx Greg