You mean the X14? I think that means RHD but not sure.
I just dug out the VIN for my first 65 SD I had in 74. It's only about 50 cars off the other 65 I am talking about in the posts above here. Sadly, I only have the VIN. No other info from it.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars