The key has its original loop so it can be attached to a watch chain if you so wish. The aperture of the hole at the end of the key is 1 mm wide.
I have been told by my Antique watch specialist friend that this is a rare find and in good condition also the barrel on cheaper watch keys is always brass or a base metal this one is silver a real sign of quality. Please study photos in depth as these are a part of the description. All measurements are approximate all stones have been measured with a Moe diamond weight calculator and a diamond spread sheet.The item "Very Rare Victorian Silver Adie&Lovekin Pistol Pocket Watch Key Circa 1895 N/R" is in sale since Friday, February 8, 2019. This item is in the category "Jewellery & Watches\Watches, Parts & Accessories\Pocket Watches". The seller is "lordbeefchimp" and is located in Brighton. This item can be shipped worldwide.