slightly different - but maybe helpful?
I almost hesitated to post because It's not the same - but a few years later model. My thinking was that design solutions don't evolve that quickly unless the design is poor. Let's all agree the 65 is a great design. So my assumption is that what is design used my car is similar to the 65. I've been more active on this forum this winter - trying to learn like lots of us.
So I looked at photos taken early in the resto of my '68 - 24267. Mine does not have any tray shaped stampings as shown in your post. However, there ARE 4 plugged holes in the floor in the cabin side of the rear bulkhead. They are more or less equally spaced laterally along the transition of the flat floor and curved floor over the rear axle. They are light colored whiteish or cream colored and have been sealed (grey caulk) around the inside where the plug protrudes into the cabin space.
These would be under the seat - and clearly would not be left open to the elements from the factory.
I think these through holes should be plugged.
"Pray as though everything depended on God. Work as though everything depended on you." - Saint Augustine
Last edited by integrity6987; 01-16-2018 at 08:21 PM.
Reason: added comment