Here is an example of an "82" Sequoia. Scrolling down in that thread to post #9 Lighthousecycle (Tim Neenan) states he thinks it is not made by 3Rensho. However the s/n of this bike and other "82s" have the the same format seen on some 3Rensho bikes, xxxx+three digit seat tube length in mm. This is why I say it is a mystery who made the "82" Sequoias.