I was wondering could this be an insufficient ink error. Just acquired it last week, and now am curious.
On the reverse, the color changes. I thought possibly due to an ink shortage? Let's just say that is what i am hoping for.
I'm not sure if the subtle color change seen on the back of the note is from the scan or from PVC damage. I've seen notes stored in PVC holders that have had a similar color change. The note also has soft corners and rust stains on both the front and back.
It should get an AU grade, what numeric value I can't say. The rust spot at the center upper margin is the most detrimental. I would still give it ago.
It will be a submission that comes with the PCGS Currency membership fee. This will be my very first submission, and I am prepared to be disappointed..... But... I just went to the library and looked at the most recent copy of Standard Guide to Small-Size U.S. paper money and although the authors make no mention of a design change in the 1928 series notes. It does mention that the backs were changed in 1934. The only verification I have of it being likely (part of the design vignette) is the pictured reverse of the 1928 in the book aforementioned. Here is what I saw: Although the pic is kind of blurry it appears as the ink color changes from darker to lighter.
The picture of the reverse is clearly discolored. The only question is - is it on the note, or with the scan? But it should not go from green to aquamarine on the reverse of the note.
I just submitted it to PCGS and will let everyone know what they say. I am just one hopeful optimistic guy.
As @MEC2 said, the color shouldn't go from green to aquamarine. If that's the case (and not the scan), it's very possible that it came in contact with a substance or chemical. Does the texture differ to the touch between the two areas of different color?
I didn't feel anything different. It felt normal, like an intaglio style note. Could have been the scan. Thanks for trying to help me.. I appreciate it.
It says Rust Stains. I thought it may have been because of water. The suffix A on the serial number is raised.
I believe you are correct Michael. If I remember correctly, the ink that they use in printing contains Iron, which could have caused the rust after contact with water.