I recently picked up a glengarry cap with a purchase I made (didn't really want the cap, but it came with the bid). Anyway, it is a nice albeit well worn cap and I am wondering its age. It was made by Monteith's of Glasgow. I suspect that the pin is a recent addition but the cap looks like, even with good use, it could be a few decades old (I love how the black ribbon has faded!). Here are photos...