Woodsheal is, of course, correct in stating: “Pom-poms weren't added to Scots bonnets till the latter 1700s, . . .”

I use the tourie as a mark of distinction because of my experience of berets as being worn by a part of the South African Army I disliked intensely, whereas in my regiment all the headgear had touries.
When my tammie was issued to me, I lost no time at all in “losing” my beret!
Regards,
Mike