I’m still catching up in Australia, saw your request. Go to the reply I posted yesterday, their explanation (?) and the link for the HUGE enlargement of the CoLB is here:
http://www.freerepublic.com/focus/news/2040486/replies?c=3382
I can see the crimp damage caused by the impressed seal. I can also see a very faint bleed through of a rubber stamp right above the bottom frame near the center.
What I’m having difficulty discerning is basket weave in some of the letters in his father’s name.
The overall resolution is good enough that I should see it, but I don’t. I suspect it’s an artifact of the imaging system/software, low contrast features near high contrast edges are often suppressed to improve perceived sharpness.
Where in Australia do you live? My sister lived in Meldale so I understand about the time.