✅ SOLVED Tag for what??

[HuntinDog]

Found this thin stamped aluminum tag with the number 3 and a hole in the middle.
It measures 1 1/2" across and looks like it was nailed to something.

Any ideas what it may have come off of ??

 

[old digger]

Possibility was attached to a wooden fence post as to the thickness and length of the post.

 

[Back-of-the-boat]

I have seen tags like that on telephone poles.

 

[HuntinDog]

Out of 160 views only 2 guesses??

Back-of-the-Boat,
I think you maybe correct..
I looked at a few poles and saw similar tags.

I'll mark this solved.