Leak - Rear Cabin

[Paul Sharp]

Here's a new one for me: Taking out my loose stuff from the baggage compartment (1967 Turbo model), noticed that small strip of upholstery along the bottom of the back wall panel was all wet. Couldn't detect much of the floor carpet being wet or even damp by comparison, but that strip of stuff was reasonably soaked.

Anyone have any experience with something like this and have suggestions as to where to look for the leak?