Windsor Collection Pewter 4-inch Door Hinges (Pack of 3)

I was impressed with the detail, weight and craftsmanship of the brass hinges with pewter finish; though I must say that I was very surprised to see an additional level of detail on the back side of the hinge that was not shown or mentioned in the product listing. There is a vertical design motif similar to that of the face plate close to the pin on the flip side of the hinge. With this additional design feature it is not clear to me if the intent of the hinge is to be installed somewhat raised from the face at the edge of the door in order to show the vertical design element; or to just have the knowledge that a nice level of detail is there but never seen behind the normal installation of the hinge. The hinges are countersunk for normal installation but I didn't see any other countersunk options on the back side of the plate for any alternative installation options such as one plate on the door face and the other on the jam. The hinges do not use a pin assembly but rather a heavy duty unified assembly with both caps that can be unscrewed for lubricating.