Have New Question About An Old Post...$20 Binary Bill

Back in December I posted about a $20 binary bill. For argument sake its a $20 2 digit serial number bill since binary is actually 1's and 0's.

Anyways I asked about all the raised lines in the bill. They do not look like creases or folds. Bill is also deeply embossed. I was basically told the bill had been origami(ed). So I put it in folder and forgot about it.

Link to old post is below.

Well today I was going through some bills I had and I came across a $20 bill that looked familiar. I checked it with the one I have put up and it has the same deep embossing and raised lines(long, short, N to S, E to W and diagonal). Some lines even match up on both bills. I then checked date and other markings and both bills are 2013, L12, Begin with ML, and end with M. Only difference is one is FW C 104 and the other is FW D 123.

Is this just a coincidence? I am just trying to figure out how and why these bills are like this.

http://goccf.com/t/388754&SearchTerms=NaNa7

In pictures the bills look like they have been wadded up into a ball but that's not what they really look like. The lines I am asking about make the bills look like that for some reason.