Canadian D.N.D. .22 LR Cartridges

I am attaching some pictures showing something of the evolution of packaging and suppliers. Note that the ,"D" headstamp of cartridges in the plastic box has a dot in the ,"D", while the original Dominion cartriges do not. Only those with the ,"W" headstamp likely came in the brick box. Comments welcome.
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When I joined, the white box and the clear boxes were what there was to shoot. It was just fine...

When I shot DCRA we used the "off white box" during the winter at the indoor range at CFB Moose Jaw. Great ammo and very accurate using a No7.