🔎 UNIDENTIFIED toy die cast jerry cans?....

[Mike from MI]

Sure look like them? About 3/4" ish square. Solid and heavy.

 

[Red-Coat]

For sure. The x-shaped indent is a distinguishing feature intended to provide rigidity and allow for expansion. Probably detached from a diecast toy WWII military vehicle.

 

[WoodsDigger]

Check toy tanks.