Mike,

I think you can add a third to the row of fine case hardeners:
Max Ern is a Master Gunmaker here in Germany and his work is well known under the best gunmakers because he is doing their color hardening as well.... have a look:

http://max-ern.com/english/bunthaerten.htm

here some examples just pictured:









Kind Regards,
Wolfgang

Last edited by Gunwolf; 06/13/13 11:26 AM.
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