
| Type | TP |
|---|---|
| Projectile | steel, brass fuze, light blue, 1 copper driving band Projectile Markings: (black ink) INERTE |
| Case | brass, segmented crimp Markings: (black ink) 20-404-ELEC ??? 261-55-S? LOT HS-1-56 |
| Primer | electric, flat, brass, ring crimp |
| Headstamp | 20 404 ELEC SF 3-56 I |
| Notes | Empty/inert fuze with plaster filler in projectile. |