When we re-organized the archieve a couple of years ago, we omitted the "ACR" designation alltogether and summarized them under 'CA', see the list
here.
I think one of the reasons was to easier find the ships under the letter 'C' for cruiser and to not mistake them for auxiliaries...
BTW, nice drawing, but there seem to be a few black pixels missing in the bilge keel.
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My worklist
Any help and source material is always welcome.