Here is an old H&R - Harrington and Richardson, breaktop pocket pistol in 32 S&W .
If you look at the trigger, you will see that it has a trigger safety.
This gun was made in the late 1800's, as I was told. I have not researched it myself. The latest may be early 1900.
Years ago a great Weaponsmith (the top of the foodchain among gunsmiths) told me, "when it comes to guns, there is rarely anything new. It has already been done or tried; and usually by the Germans".