I needed a new chainring and got this out of the parts bucket at the LBS just thinking I needed a "smaller than normal" one, but it's too small
Made in USA, weighs ~1.5oz, old-new stock/never used. I'm not sure about the manufacturer or age.
$18 plus shipping and it's yours! Otherwise I'll just return it.
If you want more pictures let me know, I'll happily oblige