KP are the initials in Cyrillic letters where the Latin "R" is represented by P (Cyrillic KP is Latin KR). I cannot see the assayer's initials behind the kokoshnk's neck, but they are probably ЯЛ (tell me if they aren't). That would be Jakov Lyapunov 1898/1899-1904. The main kokoshnik is the one in the oval frame. However, the tong is made of separate soldered parts. Every part should carry the needed marks. The kokshnik in the round frame on the "tip" is a subkokoshnik. It was used only in connection with the main hallmark on smaller parts. This procedure in order to avoid the possibility of somebody changing after the assaying a soldered silver part to a non-valuable metal.
What I told you above is only elementary information. If you want to learn more about the Russian hallmarking system, read the other threads on the Russian site. You will find lots of useful information in them.