Elvis, those are Redwings, made by Showa as I recall (if anybody knows different, say so). Far as I know, not being made any longer in any style, although you can probably find rebuilt versions out there with enough searching. As shocks go, they were adequate at best, but nothing to rave about. Really, it's much simpler to go with either Works or Progressive as both are good products and modern. The Works are a little pricier, but the popular favorite.
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'81 490 Maico (King Kong!), 2000 CR250, 74-1/2 GP400 Maico, buncha street stuff