I 'd like to add a model from the eithies behind the iron curtain.
A close Friend of mine discovered a 22 year old small inflatable made in GDR in his cellar. Looking a lot like Alpacka

Still full function speaks for its robustness. Weight? Respectable 8 pounds. Surely not intended as a packraft by the state directed economy to the time, but hey it is the idea, the use, the amphibious operation what makes a packraft a packraft, right?
I am still in search of reports, but very sure it had been used in the sense of packrafting given other restrictions to the time. Peoples resourcefulness and urge to pursue freedom in other ways sure led to travels in that way.
http://picasaweb.google.de/M.Kreinacker ... rxqYzm-wE#
Sven