Richard Pike said
I just purchased a Winchester Model 1894 through Gun Broker. It was described as “untouched” form an Estate. However as I inspected it I noticed a distinct line running through the bluing on the receiver. More clearly on one side and less clearly on the loading gate side. I have attached pictures.

Anybody have an explanation for this, or have seen this before?[Image Can Not Be Found]  

Those look like factory polishing marks to me.  A good thing when determining originality of the bluing on a receiver.

TR said
 Richard, The color and finish looks good and original, nice gun from the little bit I can see. I think when the factory buffed the receiver they went two different directions. On colt SAA’s they do that around the front sight, they call it feathering. I’m sure a 94 collector can shed some light on the subject. T/R  

Actually they buffed the receiver in 4 directions.  Some years ago I had the chance to look at the finest gun that I have ever seen. Each side of the receiver had 4 distinct squares where it was polished in alternating horizontal and vertical directions showing the buff marks.