Especially considering they don't make them by hand, they come off a machine, all made the same way, the same side presented to the printer as they come by, etc.
THAT.
These are Epcos/TDK capacitor winding machines.
In this particular case, installed in China.
So these make what´s derisively called:
a cheap chinese cap 
Typical EPCOS Factory (there are dozens all over the World):
Typical factory inside, the non-robotic area; this one in Bawal, India:
On the other side, we are constanly being led to believe that handmade stuff is top of the tops,
wildly claimed to be superior to above shown automated stuff.
Ok, just let´s visit mythical Audio Note Japan.
Audio Note Factory Tour [English]
where we see this workroom:
Machining room where Audio Note prototypes are worked out
Audio Note Japan makes
wirewound silver plate resistors for their amps, besides their
famous silver capacitors that is:
When he was not satisfied with the existing film capacitors, he made
proprietary capacitors utilizing
thin sterling-silver foils. Same thing applies for ANJ resistors. Kondo-San did actually
close the entire factory for three weeks to finalize his latest creation: the tiny capacitor he's holding in his hand.
A brand-new capacitor that costed almost three working weeks
When I read that and similar claims, I somewhat feel somebody is pulling my leg, big time.
Of course, wild claims back that, so
"it should be true"
Such as:
6moons audio reviews:Kondo Ongaku KSL M-77
where, among other things, they say:
For the Japanese artist, the process is sacred, the methods are sacred and the act of creating something simple is considered the noblest achievement man is capable of. This intense and spiritual relationship with physical matter and its counterpoint in our souls can seem bizarre to us. Have a quick look at the late Mr. Kondo talking about silver. You'd think he had taken leave of his senses.
"Silver is a living thing, as if it has a gene which seems to contain DNA as expressed a natural sound." Or what about his thoughts on sound:
"I believe that motion is sound. I am all the more convinced of my belief when I listen to the swelling mass of sound in the middle of Wagner's Tannhäuser Overture. Especially so when listening to the same music performed by the great maestro, Arturo Toscanini at his last concert of April 4, 1954. Which sounds as if the particles of the sound were colliding with one another and whirling in a thunderous march."
Back to the thread point: could one of these mythical handmade capacitors have the outer foil improperly marked?
Yes, I find
that possible: phone might ring, the factory cat might jump over the workbench, a Tsunami might hit.
But some of the robot made ones?
Even worse: 50% of them as hinted on the foil detector article?
Gimme a break.
