Cast Iron Saucepan ID Help

Any ideas? I found this at a Thrift store and I'm a bit lost. The lid has a 3-4, with the 3 above the four.

Here's the flickr link:

http://www.flickr.com/photos/90753386@N03/sets/72157635244239303/

---------- Post added at 05:58 PM ---------- Previous post was at 05:49 PM ----------

Here are the pics:


IMG_2549 by csalbie, on Flickr


IMG_2548 by csalbie, on Flickr


IMG_2547 by csalbie, on Flickr

Everything seems quite Lodge like, except the smooth bottom, to me. That other photo of the bottom of the lid, with the dimples, says BSR, though. Based on that and the numbers on the lid, and the position of the number on the bottom of the pan, I'll say BSR.

Doug,

Thanks for the help!