Tony- one thing i have to admit is that the artwork on pins from the early 50's into the early 70's, especially the 50's, is gorgeous.
I am currently reading Michaels new book and the artwork on some of those 50's games is absolutely stunning. Not to mention, as basic as the layouts are some look to be real challenging in gameplay.
One thing to mention, IMHO, if Roy had the drawing of the hands down pat, these backglass' would have been masterpieces, although they are not far off !
I am starting to see they beauty of the artwork myself now where before i never gave them ( older ems/artwork ) the time of day !