Seat minutia, distinct "line" in seat backs

[718RSK]

Great picture, thanks for sharing. Really makes the technique they used clear. I am going to see if I can cobble something together to duplicate the line

[bob joyce]

on one seat i took apart a long time ago there was a piece of masking tape
not to stick something together but to create a clean line of no adhesives.
maybe pressure sensitive double side tape would do it.

[718RSK]

on one seat i took apart a long time ago there was a piece of masking tape
not to stick something together but to create a clean line of no adhesives.
maybe pressure sensitive double side tape would do it.

Thanks for the pointer Bob. I am going to experiment a bit and will report back.

[718RSK]

Picture from the 356B/C dealer accessory book. Line and "bump" extremely clear.

[targatuesday]

I’ve disassembled one set of comfort seats and the passenger seat had never been apart and provided some clear insights into the original seat construction. As others have said the horsehair/foam stops 4-5 inches down an then it is just burlap with no additional padding on the remaining section of seat back.

[718RSK]

Getting there

[bob joyce]

would i be wrong to think that it should be less pronounced?
great result non the less....

[718RSK]

Bob, studying pictures of back when the cars were new the bulb is very pronounced.

[John Straub]

So do I understand, that's a '65 911 seat above?

John

[bob joyce]

here , i hope is the picture.IMG_20220421_0004.pdf

This picture was taken from the workshop manual;
anecdotally, most of the picture representations are of a 1968 model year...
I agree your "bolstering" looks very good...