10-03-2015, 10:58 AM
Matt, I have that issue, but there's nothing in it concerning the M420. However, the December '74 issue does have such an article: three pages of mostly photos, with some text, and another page with some text and an HO scale drawing showing the front, rear, top view, and engineer's side of the loco. I don't have time at the moment, but I'll scan if for you either tonight or tomorrow and send the scans as e-mail attachments.
Wayne
Wayne