Boy, you love making unsubstantiated claims don't you?Back in the eighties, a wallet holster was available for pocket .22's, .25's, and really small .32's.
The pistol fit inside the fabric/leather and had a trigger hole.
You drew the entire holster and fired the pistol unimpeeded by the holster.
For some reason, many States outlawed their use.
I was aware of an ATF "rule" saying certain styles of wallet holsters with a hole that allows a handgun to be fired "may" turn the handgun in to an AOW, but nothing about many states outlawing them.