Ysgarth 2nd Edition was published in 1980, in three 32-page letter-sized books with yellow, green, and gold covers. It was expanded from the first edition in many respects and was a full game.
Dave Nalle first advertised the availability of Ysgarth in his 'zine The Ebon Unicorn, included in Alarums & Excursions (Issue 51 - Nov 1979).
For a discussion on the "editions" of Ysgarth, see A look at the evolution of the game
A microbadge is available: