WOW....and I thought I was asking a simple question. I did realize this would create so much discussion. I guess a lot of you guys had he same question. I have come to the conclusion from these discussions, that the coil was originally mounted as I termed as upside down was due to the primary terminal on the late 30's to early 40's was on the bottom of the coil. The other reason this was carried on was for clearance.
