One wonders if this was a typo or if it was a common reference to a certain calibre/caliber firearm in England at the time. I would have guessed the pistol to be either a .25ACP or a .22 rimfire although there have been odd calibers/calibres of old. Have been rereading this classic and it is just so good. I do so wish I could have told him how much enjoyment and also how profound his insights into human nature and, may I add, the spiritual, that he brought to us all.De Richleau caught the bankers glance, and with his quick, cat-like step had reached the ornate desk. He pulled out a few drawers, and then found the weapon that he felt certain must be there. It was a tiny .2 pistol, but deadly enough.
I would hope one day to be able to at least get this title in a fine leatherbound edition.