What era of wire d'ya think this is from?

[fieldwrangler]

(click on image to view)

Says Viking on the other spool flange.

[David King]

Pleistocene?

[fieldwrangler]

Pleistocene?

Hmm... the typeface does have a distinctly Flintstonian vibe about it.

Perhaps I should check the ROCKwell hardness of the copper...

[fieldwrangler]

For all of you who were anxiously awaiting the answer to this puzzle, I've determined that it was made in 1979.

Me, I was way off… I was thinking' mid-to-late '60's.