In Part 12 we ended up showing this picture and asking you if you could guess what it was.
Here is a full picture.
Yes, it is a manufacturing defect which, to use Dave’s terms, is a ‘fibre tear’. The glass insert includes vertical lines which are made to look like metal but seem to me to […]
![[سيسك] رسم بيانيّ 3](http://dailyhomerenotips.com/wp-content/uploads/2008/05/webad200-200.jpg)


















