My homeowner's insurance company knows where a list of my weapons and their serial numbers is. That's as close as anyone gets to knowing how many or what kind of firearms are in my house.
All these licenses and permits and registrations I consider to be violations of our Constitution's 2nd Amendment.
That said, my favorites are the Browning A-5 light 12 shotgun and the Colt Trooper III in a .357 mag. Cat likes the Colt Commander in a .38.
Dad, when did revolvers stop being pistols?