Check out the top of the sole in the AE Byron photo in 1602, or the Sheltons you photographed. See how there are tiny little channels running inward on the top of the sole? One after another? Rather like the rumble strip on the verge of a highway, except much finer and closer together. That shoe has a wheeled edge. Now compare it to the current Park Ave, Strand, Cambridge, Fifth Ave, Fifth Street.. All you see on the top of the sole is the stitching going in and out. The inward-cut channels all around the sole's top edge aren't there. They lack wheeled edges. Alden's city shoes, except the Hampton last wingtip (360 welt, BTW), are wheel-edged. So are all C&J's city shoes, I think. All Cheaney's city shoes, Tricker's, Edward Green, etc. (Interestingly, Church's latest styles lack it). It's an elegant detail.