The Turkish Crimean War medal is a military decoration issued by Sultan Abdülmecid I of the Ottoman Empire to allied military personnel involved in the Crimean War of 1854-56. There are three different issues of this medal for those issued to British, French or Sardinian personnel. This particular specimen is the Sardinian issue, awarded to J. Birchall whose British Crimean medal I have listed below. It was common for British troops to be awarded the Sardinia medal as an unfortunate storm had wrecked the transport carrying most of the British stock.
This example is mounted in a group belonging to J. Birchall, 56th Regt of Foot.