Lead technique (cimentation), is a very old tehnic, in the way is practicing in our days having its roots in  XIII and XIV centuries; 

The most important differences to Tiffany technique is that the fixing of stained glass is in lead, H profile, not in soldering foil;

This technic is supposing a much more rigorous cutting of the paper copies and glasses, but the advantage is that it do not require each glass to be polish. 

The size`of the lead depends on the thickness of the glass and the stained glass area. H lead profile is made using a special machine;

A good workpiece has to resist more then 50 years, after that, even it keep the plain shape, the lead insertions has to be replaced;