Interesting note on bushing cauls

[Ron Nossaman]

>   In the early 1980's I attended a piano tool "swap meet" at Sid Stone's
>   shop in San Leandro, CA.  There I found part of a brass tool, about
>   the size of my thumb.  It looked pretty much like the smaller, wooden
>   one I had gotten in a box of tools from an old, retiring piano tech in
>   1979.  So I bought the brass one for 25cents, took it  home and
>   cobbled up the rest of the parts from the local hardware
>   store--miniature bushmaster.  Some time later I found one made out of
>   aluminum, about two inches high and one inch wide.
> 
>   Diane

Was the body of the aluminum one shaped somewhat like a violin?
Ron N