Seems to me Casull Arms when they were in business had a DA small .22LR revolver which if increased in size in a bit larger caliber would be of interest.
Years ago Colt made a Pocket Positive which was quite small in .32 cal. Here is what Grant Cunningham had to say on his blog:
"The Pocket Positive was nothing more than a scaled-down "D" frame (Detective Special, etc.) After all, the "D" frame was just a scaled down "E" frame (Official Police, etc.) so why not go even smaller? The Pocket Positive was a tiny little gun - considerably smaller than even a "J" frame. (A cylinder on the Colt measures 1.240", while the "J" frame comes in at 1.310". What really makes the difference, though, is the frame - the Pocket Positive is a tiny, almost jewel-like gun, noticeably smaller than the popular "J".) The action is, as noted, of normal Colt design, and should smooth up as nicely as its bigger brothers.
The Pocket Positive was most commonly chambered in the .32 Colt Police round, aka the .32 S&W Long. Now the .32 S&W round isn't terribly powerful, of course, but neither is the .32ACP - a cartridge used and praised in the backup role for many years. The .32 revolver round has a significantly heavier bullet, so it should have better penetration than the .32ACP - always a good thing when shooting a "mousegun." Ammunition is still being made, though the factory offerings are limited to lead round nose.
Pocket Positives have not yet captured the collecting world's imagination, and are still available at reasonable prices. I picked one up a while back for $150, and it's been sitting in my "to do" pile awaiting some spare time. I think I'll dig that out and put it back into working order; I think it may be the answer to the need for a good backup revolver!
(Now if only someone would reintroduce it in titanium...)"
Here is a link to a picture of one:
http://www.armchairgunshow.com/images/hc-pp1296.jpg
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