.450 Adams/Webley type rimmed inert ammo. The .450 cartridge was the first centre fire hand gun round adopted by the British Army. Between 1865 and 1867 the War office officially adopted the .450 Adams revolver and this ammo to replace the Beaumont-Adams Percussion revolver.
Bullet sizes/profile/material may vary from the photo depending on what we can obtain. Also cases are very old and may have verdigris which will need polishing