
| Type | Dummy |
|---|---|
| Projectile | steel, brass fuze, 1 copper driving band Projectile Markings: (stamped on fuze) NO 253 I.C.F.S.C. (stamped on projectile) MK3 9 1 181 |
| Case | brass, segmented crimp, chrome plated |
| Primer | percussion (fired), flat, brass, ring crimp |
| Headstamp | E.K. 1943 20MM MK.2 |
| Notes | Projectile and fuze are inert. |