Trunk Light Socket Very Strange?

I went to replace the bulb in the trunk light socket and was met by something I had never seen before: the socket appears to be made in two thicknesses. First a wide one with appropriate cut outs on the side where the bulb nipples fit in, then a long slender shaft (with a cardboard tubular insert) down to the positive contact. I've never seen anything like this. Only thing I can figure is that it is designed to have a metal rod inside the cardboard shaft that allows the contact to touch the bulb that is locked in up top. However, the book says this is a #89 bulb (which is very small) and would not fit this setup.

Explanations?

Norm

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Comment by Jason Edge on December 5, 2018 at 8:11am: Norm, I have bulbs, in fact some new ones, but out of the Mercury Switch. I will put you on my Wait List. Jason.

Comment by Norman Silverman on December 4, 2018 at 10:21pm: OK, the answer was on the help area of this site. Duh!

So, Jason, do you have a mercury switch for this?

Norm

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