Hi Frank,
Sorry it was many years ago (more than 30
) and I didn't have a camera with me at the time.
I think the indentations which would accomodate the rear screen are there because that was the way the guys who created the original body moulds chose to do it. They could have lost the indentations but would have to have made a bigger replacement section with a modified shape for the DHC and that would have added flash lines which they probably wanted to avoid?.
The only difference between the FHC shell and the DHC at that point is that the flange is made a bit taller (on the FHC shell the lower lip is very short) and perhaps a little bit thicker to allow space for the hood fasteners.
As I say the front section was a different top mould to form the correct shape for the aluminium strip and hood front corner fastenings. but I am hazy on how the rear was achieved, they may have just allowed the glass to overlap a bit more and then trimmed it to size?
Perhaps someone else has seen it done?
I had to convert my own (Type 45) back to DHC because the PO had decided he wanted a FHC so I'm pretty clear how it's done as a conversion. I extended and thickened the rear flange on my own shell but it would have been far easier with an extension mould to shape and support it!
Fitting the (correctly moulded) screen top frame to the shell, making it strong and getting the windscreen aperture correct was a bugger of a job but would have been simple to do in the mould.
If I ever get to see a body mould again I'll pay more attention