hey guys i was looking through this litle place that occasionaly hs bits and pieces worth getting, and today i found 2 headsets, part of a tange, the top parts of it. and i was wondering whether you could tell me about this design they use on its like upside down, so does anyone have a picture of the piece i need i always see just pictures o full headsets, never broken down, which isnt normaly an issue as there all on average the same generally. Also does anyone have the piece im missing spare? even just the one piece so i can use this top half.

Also does anyone know about these kuwahara marked headsets, as i got one today aswell but this ones seems to be complete, were they any good? what era were these roughly?
it uses the beartrap style of locking, and has kuwahara cycle in raised up lettering around the top race, and kuwahara made in japan on the top bolt, which is similair to a normal bolt with just a lip on it, as oppposed to a say the tange which has like a noticable taper on the top of it.

and last but least i also picked up a kashimax seat, but it has about a 1" or so crack near the nose, and i was wondering has anyone tryed something along the lines of heting them up and moving them around a little to get the crack as close as possible? or even remelt them together?, and also to get them back in where they always get flared from the bolt of the guts.
thanks for any info.