maybe have a look at this (redux) these

http://www.veleno.net/history2.html

http://www.bergeronguitars.com/ 

http://www.industrialguitar.com/ 

http://www.gusguitars.com/ 

http://www.meloduende.fr/en/ 

http://rksguitars.com/main.php 

so what is the time period we are talking about "new" and "design"?

once again, way too much to look at.

 or cut out the middle man and just go here

http://www.jedistar.com/metal_guitars.htm 

go to BOTH pages.