Thank you warm words. ( ´͈ ᵕ `͈ )But my work relies on the great achievement of J-sews and gregozedobe. What I did is just to visualize them.As you said, it is hard to determine the timeline. I think I can only guess when the particular model has appeared looking closely to pictures on Gerber catalogs, or sellers advertisement on magazines. But I don't have catalogs from that time at all. ┏(-_-;)┓Of course, Professor Greg knows all the timelines as usual.But he just forgets where his notes are. (ノД`) ( ´ー`)。о (Sorry Greg, I'm just kidding.)UPO 1 / 20Black FISKARS with P-8n pliers(Image removed from quote.)(Image removed from quote.)Almost all FISKARS models have a utility blade instead of a can opener.(Image removed from quote.)P-8n pliers is shorter than normal(P-8N) needle nose pliers.(Image removed from quote.)So P-8n pliers is not overhang when sliding to inside.
...Some of the catalogues I've seen pictures of haven't been very helpful in establishing timelines, as the actual production tools had significant differences to some of the ones pictured in the catalogues. I think they were most likely pre-production mock-ups built just for the catalogues.