Most look like CD 102s to me, which makes sense because I know that a bunch of them (mold-line-over-dome Brookfields) were found years ago here in Massachusetts at a dump very near where this line passed through.

Note that the top of this pole was unusually "carved"; like a somewhat tapered pencil eraser. Perhaps that provided ample and adequate mounting of the poletop ridge pin/hardware that most of these poles had.

Click "Previous" for a bit more information about this historic long distance telephone line.