OT What is this in the electric pole?

Taking a walk and sat down by a wood electric pole, not carrying any
electricity, just put on one side of the street to balance the tension
from the other direction on the pole on the other side of the street.

About a foot above the ground is a 3" section with 3 things in it, all
pointing down, about 30^ from vertical. The top one was a wooden plug
about 3/4" in diameter. The next one down was a wooden plug about an
inch in diameter. And the bottom one was a metal thing, black, looks
like a plug, almost an inch in diam. with a hole for a pretty large torx
wrench in the top.

What do you think these things are?