You can save that image as a JPEG on your computer, then zoom in and plainly see the “K”. I’ve got a Mac and I’m using the Preview app. I’ve zoomed in several levels, and though the photo gets blurry, the “K” is plain as day. In fact, it’s clearer at higher levels of magnification than the other letters and numbers. I’ve zoomed in six levels and it’s still readable, while everything else around it is hopelessly blurred.
The first photo at the top of this thread has “K.F. Lavender”.
If you can’t see it, that’s your problem.
If you have a Mac, and maybe even on a pc, you can zoom without using any other aps. Just hold you “Control” button down, and zoom with your scroll wheel.
I, Swordmaker, created the JPEG image that is at the top of this thread. I have the original PNG capture file on my desktop from which it was created. The letter is an "E"! The appearance of a "K" is an artifact of the conversion from PNG to JPEG caused by simplifying the anti-aliasing of the character displayed.