My understanding has always been that BSR was established by by Atlanta Stove to be their hollow ware manufacturing arm, and thus they never made pans themselves. Pieces I have seen to date with paper labels saying Atlanta Stove Works were in all respects identical to BSR. The smooth bottom and small pour spouts would tend to make one think that, if this was BSR, it would be later production, and one would expect to see markings more consistent with the 1960s and after.