Nice find and nice looking car. REgarding the upholstery, the brown vinyl is original but as is often the case, the cloth inserts are not. Trim code 4403 is Shepherd Plaid & Burma Vinyl which is probably the most common '51 Henry J upholstery. It looks like this
In any case, the upholstery on your car is nicely done and looks a lot like some of the original upholstery you see. My '52 has that Caribbean Plaid which is green and orange plaid. Congrats and keep us posted on any progress.
