Hi;
I unfortunately experienced the hall brailler.  Quite the noisy contraption. 
There was also a lavender brailler but I don't think it was very popular. 
Apparently there is some type of electric perkins brailler.  Has anyone used 
one?  Other than the occasional need for cleaning the good old standard 
perkins is hard to beat.  It is old enough that I'm a bit surprised that the 
price has never come down.  If you don't have plans to use yours John its 
money waiting to come to your mail box.  I have seen them for sale in 
various states of decay and they seem to find new homes with little 
difficulty.
Richard