cardboard key

["Anders, Claus" <canders@xxxxxxxxx>]

Hi all,
today I gathered some statistics according to the use of possible cardboard
key and found some interesting proportions:
First I replaced all the gallows with the character "G" and the other with "
" to find the biggest area without gallows. The size of this area was 10
colums by 10 rows.
Next I counted the gallows on each page and compared this to the number of
characters on the page (assuming that each gallow scould indicate the use of
the key) and found following proportions:
average number of gallows per page =84.2849 and the percentage of the
characters of a page is 11.4759% with a very low deviation:min 8.23256 and
max 17.35 but most of the percentage lies between 9 and 12.
My conclusion:
If a cardboard was used it could have a size on 10 colums by 10 rows  and
uses 11 holes for encoding, 1 hole as starting point and the other for the
text. 
I don't know if this observation has any importance (it doesn't give a clue
about the patterns), but I feel the numbers are right.
Cheers
Claus