Way back in my brain I remember reading that the attachment of the cab windlace, that goes round the door opening inside the cab, changed. At the start of the A-D series, the windlace was attached by a metal molding with screws. By at least 1950 the windlace had been redesigned with a "tongue" that went into a channel around the door opening. No need for the molding or screws. I went thru the A-D Spotters guide on this site, and reviewed all of Jim Carter's tech articles about the A-D series, and found nothing.
Anyone know the details of that? Any pictures of your windlace? Thanks!
