This is a very odd fish indeed. My most recent purchase in Hastings a couple days ago. I’ve never seen another quite like it. It’s made of the softest flannel, black and dark grey warp and weft yarns. The belt at the rear of the bill and large-ish buttons are a distinctly uncommon touch for a British cap. I really love the awful placement of the snap – nowhere near to being centred – a very War Department quality control touch. And the fact that this cap was made by the War Department, presumably for issue to someone in the armed forces, or under contract to the WD? Anyone know anything about these caps? It ended up in the BBC wardrobe department in Birmingham.