Instructions: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : The Webley Revolver (also known as the Webley Top-Break Revolver or Webley Self-Extracting Revolver) was, in various marks, the standard issue service pistol for the armed forces of the United Kingdom, the British Empire, and the Commonwealth from 1887 until 1963.
Question : Which was the official year for the approval of Webley Revolver?
Output:
1887