I went in for a closer look
Bigger picture
The middle one (third from bottom and top), IS FAULTY
.
Silkscreen on 2.0mm to 1.4mm is faded. Also text "EEVBLOG.COM µRuler" text has jagged edges for the same reason. When I look really close with good light, I can see it looks like rasterized, with not enough ink. Maybe their machine ran low/out on white ink/silkscreening?
Issue can be clearly seen on that top ruler. Rounded corner.
After playing around all day with my shiny new µRulers (I was doing other things and just fiddling around with them, also I played only with two but all five are the same), I noticed
all of my 5 rulers have a notch at the inch measurement end. Measurement end is not straight. Not all corners are exactly the same, some rulers have bigger notch than others, one is almost non existent, if the others didn't have it I wouldn't have noticed. Millimeter start and end are straight, inches start is straight and stop looks like router was badly configured to produce these in a hurry, so it took too much from the end.
Anyone else have this? I doubt it's only my rulers. The faded silkscreen might be more rare issue. Not that it is a huge issue for me, thought I should still report it. Might still be enough to complain to pcb manufacturer for discount on possible new batch?