Robinett_11B
US Veteran
Here is a picture of a Model 19, which is the blued version of your 66 and a stainless J frame that I was describing above for a size comparison.
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The stainless gun looks bigger in comparison to the other gun due to the angle of the photo.
Here's a shot of the same stainless J-frame .357 (Model 640-1) in Iggy's photo compared to a Model 66-1 like the one you currently own.

I think a "hammerless" stainless J-frame like this 640 would make a great purse gun if you were looking for something a little more compact than the Model 66. Like others have stated, a .40 that's small enough to fit in your purse may be a little harder to learn on and shoot well. I'll also echo the others in saying you're much better off selling or trading your gun here vs a shop.
Good luck.