OK, please excuse my ignorance, but are all early 911 doors stamped with the chasis numbers? I found the stamping on my doors today as I was taking them apart. "409S" I had my '69T apart and I don't recall seeing those marks. I am aware of the body & engine numbering, but did not know other panels were marked as well.

Any informaiton would be appreciated.

Again, please take pity on the new kid!