As an additional option, you could have pop-out side windows installed at the then VW dealer, replacing the fixed rear side windows. By pulling a lever, the rear side windows could now be opened a few centimetres. This option was particularly popular in warmer regions.
On the Karmann Ghia and VW Type 3 this was not part of an option package, they were delivered with this luxury from the factory.
On most pop-out windows, the lock button is very dirty or damaged, here is a new one which comes complete with mounting hardware.
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