Hi -- new member here. I came across this discussion about Workmates and I registered for the forum so that I could contribute to discussion. I learned a few things by reading the old messages, and I think I can add some more info that will help others.
I currently own four Workmates and I have owned (and sold) four others in the last five years. All eight of mine have been variations of the original design, dating from about 1975 to 1979 and differing slightly in materials and details. They have all been dual height 79-00X models; I've never had any of the 2XX, 4XX, 5XX, benchtop, wall-mount, etc. models, so I can't speak to those at all.
I think of these original Workmates as falling into three categories based on the material used in the frame: 1) all aluminum, 2) aluminum and steel, and 3) all steel.
I currently have (oldest to newest production):
79-001 Type E all aluminum Made in England
79-001 Type 2 aluminum and steel (this and the next one are identical) Made in Canada
79-001 Type 2 aluminum and steel
79-001 Type 4 all steel (This is my own original Workmate, bought new in 1979. All the others are older production, but bought more recently, in the last six years or so.)
I've sold:
79-004 Type 1 aluminum and steel Made in Canada (identical to the next one)
79-004 Type 1 aluminum and steel Made in Canada
79-001 Type 4 aluminum and steel Made in Canada
79-001 Type 2 aluminum and steel Made in Canada
I sold three of these on eBay, and they may have been among the sales mentioned by members here because of the high prices! The fourth one I sold on CL for much less.
That's it for an introduction right now -- I'll be posting more in the next few days.
In the meantime, since everyone always wants pictures, here are some of the 79-004 Type 1, which I don't think I've seen mentioned here before. Its distinguishing feature is an attached multi-outlet power strip. Also a good photo of its carton and owner's manual.