Subtle variations in 68 stripes photographed at York yesterday.   68029 on left, 68021 on right.       The middle light blue section is angled slightly shallower on 68021, first noticed by this variation in where the upper dark blue stripe finishes.   Looking at these next two, you can see where the dark blue stripe crosses the lower corner of the door - slightly different locations.   I know it's only a minor point and I wouldn't hav