Hi Phil, 
yes its my work, 
the buckles i have from  Czechoslowakia , if you need anything i can sell you for the same price i  pay , usually i buy hundreds of buckles in one order .... 
the corner trims are selfmade of stainless steel with a plasma cutter , 
@ Bruce,  i asked lowy, 
the quick release buckles are 875  for 50 complete buckles   (  17,50 Dollar both pieces )   and 445  for shiping to germany ......  
but i can ship it with a container service too,i will ask for a rate  
regards 
Rouven