Walther TPH Wikipedia
The Walther TP and TPH handguns are extremely compact doubleaction lightweight semiautomatic pistols in .22 Long Rifle and .25 ACP calibers. Pistols in this size range are sometimes referred to as pocket pistols, or Taschen Pistolen in German (TPH stands for the Taschen Pistole, Hn, or "pocket pistol, hammer" variant).The TP was produced by Walther from and the improved TPH .