Haven't had my '54 seat apart Drew, but the '50 has burlap
over the springs, then the coir pad (horse hair) over that
and a cotton pad next before the cover is installed.
That is all the padding that was originally used. The coir
pad should have had an apron sewn around it's outer edge so
there would only be one way to install it. I don't remember
there being any mesh on the '50 but I would think it would
face down against the burlap. Click the next button at the
top right to cycle thru the sequence of the layup:
http://www.pbase.com/dennygraham/image/120777653 dg
