[MonroeDNA]

"I saw a wallet holster for the Seecamp .32 at a gun show once"

Trouble is finding the Seacamp in the first place.

[NYFriend]

An old NYPD friend of mine used to carry a .22 or .25 Berreta 21 series in a wallet holster.

There is a police only store in LA, as the LAPD Acadamy as I recall. One of their toys is a baton with a single shot pistol built in.

Either Turk or Greek diplomats and VIP's have leather glasses cases that hold a 9mm pistol. It's a rectangular thing that looks like a small brick and if you fire it by squeezing a panel on the side. Lots of that kind of thing. The US Govt. has several similar weapons.