Okay, look at ANY restored or original early car interior you will see them. Check Ebay, this site and the early 911S registry. within a few minutes I think you'll see that I've been down this same road and understand (this at least  ) completely.
Here are a couple of examples from my files:
Note the headlight switch on the left
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'73 914 2.0, '74 911 Coupe, '74 911 Targa
'78 924, '84 944, '86 944 Turbo, '84 911 Coupe
'84 944 (current), '96 993 Coupe (current)
'73 911T Coupe (current)
'88 930S M505 (current)
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