BGB - Strange lines in the book?

richy3333

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Has anyone else noticed the strange vertical lines in their book? For example on page 164/165 in the right hand side there are various short vertical lines. These appear to lesser or greater extents on many other pages. Does anyone know what these are for?
 
BGB big green book, god i'm thick i'd seen this mentioned in loads of posts and thought it was something special

shouldn't realy have said this, anyone else care to say they didn't know what BGB was

quick save face i did know what the lines meant though!!
 
they are lay lines so as the IET can find it's way to stonehenge to get inspiration for the next cash cow
 
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richy3333,
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telectrix,
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