"ghb624" wrote in message
...
Here's a photo of something I found the other day while walking near
the Norfolk Southern rail line in Huntsville (northern Alabama).
Anyone able to ID what it might be, or what it's from?

http://www.flickr.com/photos/ghb624/5471337467/

I got no idea what it is, but someone put a lot of work into it to get the
markings in just the right spot, drilled and shaped, and that slider dowel
is curious.

Steve