subtle and simple. Wood pole, stainless bracket. All the ones I have seen are small, puney fake chromy ones that dont look like they would hold a tea towl rather than a decent sized ensign
I've just looked on west Marine and can't find it now - I'll keep looking. I bought the 25mm bracket which was still slack on the rail even when tightened so I cut a small strip from a hosepipe, split it, wrapped it around the rail and the bracket then fit snugly
I got the pole (wooden) from Aladdins Cave on the Hamble - the big store not the smaller one.