I think the term used in discussions was door seal or door weatherstrip rather than windlace which may be why you couldn't find the threads.
Jon G has a lengthy article with photographic comparisons of the original to various reproductions.
Steele was the closest to original but not exactly correct.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
| 
