Markings on Canadian steel ammo boxes

A fellow armor modeler I know is working with a company to make dry-transfer stencils for scale model ammo boxes. He has references enough for US WW2-through-contemporary boxes, but has asked for help with Canadian boxes.

Does anyone have any info on how those boxes are marked? Any photo samples? I’m talking about US-style steel ammo boxes; English types are a lot different, and I don’t think they’ve moved into that area yet.

TIA - Dan