While not attributed directly to a Scottish unit, I have always liked the British side caps. During a deployment a few years ago, a Military Intelligence Corps colleague told me he always regretted that the MIC gave up wearing the side cap. Ever since I have been trying to find one and finally a little while ago I did.
I like to add images to my posts to show the headgear being worn, but after scouring multiple sources (to include the MIC Museum's site), I was only able to find pre-1953 pictures and references. I will keep looking.
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