Thanks, Tilman,

You answered my question on the last posting more than completely.

> 
> Sko senior has been using beryllium copper of various degrees of hardness
> since he got a huge batch of b.c. back in, I believe, the early sixties (no
> idea where). The harder kind sounds sometimes a bit sharp. What I have here

Rodney Myrvaagnes

Please send emails to 
rodneym (AT) alumni (DOT) tufts (DOT) edu
with obvious corrections.