that pic makes the K last look better. The k last looks wider/less chiseled than the U last in that pic.
edit - just saw NAMOR agress haha
@RogerP any chance you could do a side by side of the U and the K? Maybe an aerial view to see how the shapes differ?
the vintage rioja seems to have a lot of variance in color, some of the pictures look eggplant-y while others have much more red in it. There is also quite a bit of variation in the darkness of the shades as well.