For John Cole and any others interested:
Find your way into Yahoo Groups on the web and search
"slowspeedwire" (all one word, lower case)(you will probably have to sign up to yahoo Groups if you aren't already...)
in Slowspeedwire, Look at "files", find the .pdf file "Pole Line and Insulator Stndrds" that James Wades of the Morse Telegraph Club put there from the old AAR Communications Standards Manuals.
Much info about pole line hardware of interest to those whom might be reconstructing same or just want to know.