This has been a fun thread to read. Whirlpool lineage can be a bit difficult since they were so similar for so many years, not to mention the fact that I didn't see a whole lot of Whirlpools "back in the day", save for my great aunt's 58, but that makes it that much more interesting.
It's fun to see that one with the vertical buttons again; I only ever saw it in a magazine back then, don't think I ever did see one in person.
I don't know why, but I want to say that one close to the top with the wooden handle is from the earlier 70s, maybe 1970-72.
I do remember the one where the slant goes all the way down from the cabinet, that would have been late 60s as Glenn mentioned.
I had not realized the multiple speed tumbling lasted into the 70s. Never quite been able to wrap myself around that whole concept...
Anybody know the last year they made machines with the "partial" consoles? Last year of the actual plastic dial that turned, rather than just the knob in the center pointing to markings on the panel?