With thanks to Clive for his notes on his recent visit to the SA Archives, that should be the SA Archives revisited because it was almost 12 months ago when Clive made his first trip there and gathered a good deal of valuable information regarding Tibor.
1. The first thing that Clive did was to gain permission to see the actual files rather than just the scans. That turned up an interesting fact immediately. What we had considered to be two pages of a letter from Tibor was in fact a single page but written on both sides.
2. The paper itself was very thin, rather like air mail paper and you could see through it if held up to the light. That would reflect perhaps the general shortage of paper at that time but also it might mean that Tibor was in the habit of writing air mail letters as indeed he most probably did when he 'informed friends in London' as he put in his letter. We have no other hard evidence that supports regular writing of air mail letters, at least at this stage we don't.
3. Clive had taken a UV lamp in the hope he would be able to make use of one to examine the letter more closely, sadly he wasn't offered access to a darkened room which meant that the UV light was all but useless.
4. On examining the letter in normal light, Clive was able to confirm that there were indeed examples of tiny writing on the paper and further, he was able to make out the following:
'On the first line, under the words "to cause" it looked like a figure '625', above the same words, I thought I could make out a part word, "etta", which I thought, for a moment, could be Danetta! But, I just couldn't make it out.
On the second line, under the word "inconvenience" it looked like a figure '45'.
On the seventh line, above the words "fairly simply" it looked like a figure '39'
Under other lines I notice what looked like the figures 3289 and 3345-But, it was nearly impossible to be sure.'
Is it possible that invisible ink was used to write between the lines?
The short answer for Invisible ink was yes it is possible but without proper testing, it would be hard to show.
Another point to consider is that because the page was written on both sides of the same sheet of thin paper, could it be that the micro writing that Clive saw was just the writing on the other side of the page? Possible but not sure how likely, Clive says that he was able to make out part of a word and then numbers, that would mean that the figures he saw could be read from left to right, had the figures and part word been from the back side of the page they would have been reversed. They would also have been noticeably sloped in the opposite direction and finally, there are no numbers written on either side of the page.
Personally, I think that given Clive had no tools that he could use to get a clearer view, this was an amazingly good result. We now know that it was a single sheet and that it was similar to air mail quality. Micro writing in the letter has been confirmed by viewing the actual letter as well as the scans. We have some specific areas to target more closely, wouldn't it be something if it was Danetta! It is not beyond the bounds of possibility that we may even uncover a telephone number.
In conjunction with this work, we are still waiting for feedback from Melbourne that may give us a positive link between Tibor and Jestyn, too soon to be sure but it is a possibility.
Many thanks Clive!