No, unfortunately. It's from Perkins-Shearer, a Denver men's store, perhaps now defunct. There's no maker indicated (apart from that guy "Dryclean Only"; I've got a lot of his stuff ...).
I've no idea how or when I've got it. If you live 'till late middle-age and your measurements haven't changed much since college, you'll end up with all sorts of mysterious things in the nether reaches of your walk-in closet.
I fear there may be a witch or a lion.
If you're in Dublin, I'm jealous.
I´m not in Dublin but will visit soon. I know what you mean about the middle-age measurements. I found a Valentino shirt last week that I wore to a Debutant ball in the 80´s...still fits