ITA335112 C238 British Ammunition / Stowage Boxes 1942 to Modern
 
exceedinlgly common ammunition boxes designed in WW2 and still in use today. You can find wwii examples repainted and restencilled still used to both store ammunition (everything from 6pdr to grenades and more) and very commonlly welded to AFVs (Ive seen them on Churchills, Ferret and everything in between) as extra stowage boxes

Made from measurements of my own C238 box (which you can often see on the ITA3 stand at shows)

A very handy item to keep in your spares box

3D printed resin, requires removal from supports, and cleanup