'Ink H' Microcodes shown in the following images from the Boxall ROK...
1. GRAPES
A close up of the grapes from the illustration page of the Boxall Rubaiyat:
Above is the marked Macro close view of the grapes.
2. TITLE LETTERS:
The following images show the concealment of microcode within the actual letters of the Title page:
3. THE PAGE DIVIDE
The next 2 images show the concealment that appears as a vertical line between the inscription and title pages.
This next image shows the concealment in reasonable detail, the characters shown are around .4mm in size:
HAY BANK NOTES
There is an amazing resemblance between the method used to conceal code in this image and that used by George Teltscher in his stunning design of the Hay Internment Camp banknotes.
The signature line from a Hay 2 shilling note, microcode within the cursive writing
Below I have cropped the top image in two parts for easier handling. The idea is that from these images you will see the beginnings of how the book was used, I believe, as a training manual, Jestyn was taught how to conceal codes and this was her assignment.
I have put similar images on here previously, I explained then how to process the initial photograph in order to reveal the codes. Essentially it was a matter of printing out the original image on bleed-proof paper and at high-quality print settings. What's different about this image is that this is a hi-resolution copy of the 2nd stage image, that is, this is a copy of the image on bleed-proof paper.
The idea is to enable anyone to download and examine the details for themselves.
1. The Inscription page: