The ones with the silver surround look like the ones in our '79 which are stock, while the black ones match the '85, so it looks like your '83 has the early switches installed. I haven't pulled mine to check the pins, though.

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1985 300D-189k The 'UD', Ivory and Pinkamino
1979 300D-211k Dark Gray, Parchment
A 1980 Harley-~166k and
A 1994 Ford diesel pickup-349k and
A 1990 gasser Volvo wagon-145k