Well, just received this very day from Spa Cycles in 'arrowgate, a new black Nidd touring saddle, and very spiffy it is too. Pretty much identical in shape & size to my dark brown B17 with copper rivets & plated rails. Have some slight misgivings as I don't normally buy knock-offs... Then again, I also bought a set of Spa's XD2 cranks for my Raven's drive train, and am very pleased by how pretty they look, all the more so 'cos of the very good price -- sans VAT, several steps south of £20.
When my Brooks migrates next spring (northwards, of course, as the sun rises higher in the sky) to sit atop my Raven frame & 'post, the Nidd will take over day-ride duties on the Eclipse, making that bike wholly black, grey n silver. It comes, BTW, complete with a pre-punched-and-laced transverse tightening setup. The Nidd will be Obenaufed shortly, for protection during its hibernation against the effects of our forced-air heating.
Comparative reports & side-by-side fotos to follow after the vernal equinox.