Was at the lib today and used a good library database called
WorldCat. I looked up the late 1800's Tesla related book that was
previously mentioned on your listserv. It was called...
National Electrical Code. Year: 1897 Author: National Board of Fire
Underwriters.
The book does appear to be rare since it was not appear
on my normal LCS database. There were other book titles which
gave reference to it, one as far back as 1869. The National Union
Catalogue (big green volumeous books) would be another good source.
Jim Logue