This display pole top was outfitted with the arm, braces, pins and three early multi-part s from an old 60 KV line in Tracy, CA. The cross arm was attached with two 5/8" thru-bolts rather than one in later construction and the wood braces were attached to the pole with lag bolts. The pins in the cross arm are the 1-1/2" pipe with a 1/2" hole for the cross arm bolt. The multi-parts from left to right as follow: M-4321 B, marked "VICTOR", M-43XX, unmarked THOMAS with 13 rings, M-3XXX, Westinghouse. This is old school (early 1900s) line construction.