Dear Marco, John, and All,
About one or two year before he died, Bambang Harsrinuksmo also had a "brilliant idea" of issuing certificate of keris. (This is one example of his certification, please look at this pics):
http://www.heritageofjava.com/keris/sertifikat_01.html
Maybe this is the only one "commercial side" in the life of Bambang. But Bambang -- in my opinion -- tried to be objective in certificating kerises. And like as if certificate of "graduation" in schools, it has "identity photo" of the keris itself...
Unfortunately, this certification had stopped as he passed away in 2003.
Ganjawulung