Copper Hubbards (leftmost top is Duquesne Light and Power - yep - same Co as insulators).

Another Duq. is 5th from left same row.

Second row is a red, aluminum "Customer Pole" pulled in Cheyenne, WY.

2I(C)6, 2I(C)9, 3I(C)2 = 1926, 29, and 32 International Creosoting and Construction Co. p.107 Date Nails and Railroad Tie Preservation Vol. III by Jeff Oaks

CPDD is Consumers Public Power District (Nebraska." P90 "Date Nails and Railroad Tie Preservation Vol. III by Jeff Oaks"

Rightmost on the second line is a 1927 copper "CREO PIN"- supposed to say CREO PINE but only parts of the E are barely visible on this one - (found along WM RR) - creosote pole treatment company nail. The head is not damaged to be a misshapen circle - they all seem to have been made that way.

Third row starts with a Northwest Bell Tel. Co.p. 92. Ibid.

then numbered aluminum light pole nails (height or lumens?), and also some J (joint ownership nails - non Hubbard - Union City, PA) pole nails.

At the bottom are small, copper pole tag nails from all over.