Got this dollar bill today severely week ink on the front except for the stamps in the serial number everything else is light reverse normal any value
Bills that are left in jeans and go through the washing machine, don't qualify for under inking error. The ink washes out of them.
Is the black ink used for the third printing of the bank seal a different ink from the second printing? I have seen many bills like the one in the OP and the bank seal always looks nice and dark. Why would washing the bill, or laying it in the sun, fade the second printing but not the third?
That is a point, I see what you mean, you'll have to ask Steve in Tampa. But the condition of the bill is so hammered, even if, not going to help much.
I’ve seen notes similar to this before, where the second print (Intaglio) fades or washes out at a different rate than the third print. It leaves me to believe that the third print (non Intaglio) ink is a different formula. Just me thinking out loud.....I don’t know for sure.
I've read something similar years ago, but can't offer any hard facts. Based on my observations over the years, I do believe that something is different, but like @SteveInTampa, it's just a theory. "Better Living through Chemistry"
Yes, different ink. You can also see the difference on brand-new bills: you can smear the Fed seal a bit with your thumb, but not the intaglio printing. This difference is sometimes used to check for counterfeits, as the average counterfeiter doesn't use two different black inks.
Washed a pair of white carpenter pants many years ago, with a pen in the pocket, when pens still used ink. Ended up with a great rainbow, ink chromatography, coin toning on the pocket.