Such a long title — and we have even abbreviated it — for a nice set of six maximum cards, of which our scan shows you two. Issued on 11 November 2020 by Chunghwa Post, and with a cardboard cover.  And in case you didn’t know the word “syzygy” (we sure didn’t), Wikipedia tells us it means “In astronomy, a syzygy is a roughly straight-line configuration of three or more celestial bodies in a gravitational system.”  Grade: 1