This is Tripitaka Master Paramartha's earliest (ca 550 ce) complete edition of Nagarjuna's Ratnavali. In it, Nagarjuna presents both abstruse teachings and practical advice to lay and monastic practitioners while also describing in considerable detail the terrains of the Bodhisattva Path.  This very early edition is particularly useful in shedding light on difficult passages in the much-later Tibetan "revised translation" edition, the only other complete edition of this work.