identification of ammo boxes

[patfed]

Hello, I'd like to ask you for help with identifications of these ammo boxes used on Commonwealth vehicles.

Here 2 types of ammo boxes is visible. There's two same boxes stacked behindl each other. Another small box stacked/welded to top of second ammo box. What types are these?



Here's ammo box welded to the top sloping plate of Sherman V. roughly 88 cm long (34.5") and 30 cm tall (11.7"). What type is it?



Both tanks were photographed in 1945 in Italy.
Thanks for any tips.

 

[GFishlock]

I think it’s the forerunner to the M2A1 container. The M2. It was used for the 50 cal on the Sherman

 

[GFishlock]

I think it’s the forerunner to the M2A1 container. The M2. It was used for the 50 cal on the Sherman

Actually….the scallop effects on the top photo doesn’t bode well on my analysis. Might be better to ignore my suggestion

 

[hangarman]

Box at the back is a C207 for 2pr Anti tank rounds, Weirdly the box in front is a C206 for 25 pr cartridges